diff --git a/bench-results/buf-bench-after-cpu-capped-2.json b/bench-results/buf-bench-after-cpu-capped-2.json
new file mode 100644
index 000000000000..57b27cb0d98a
--- /dev/null
+++ b/bench-results/buf-bench-after-cpu-capped-2.json
@@ -0,0 +1,115 @@
+{
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diff --git a/bench-results/buf-bench-after-cpu-capped.json b/bench-results/buf-bench-after-cpu-capped.json
new file mode 100644
index 000000000000..d2e8b36c4d98
--- /dev/null
+++ b/bench-results/buf-bench-after-cpu-capped.json
@@ -0,0 +1,1341 @@
+{
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diff --git a/bench-results/buf-bench-after.json b/bench-results/buf-bench-after.json
new file mode 100644
index 000000000000..b9d366cfda47
--- /dev/null
+++ b/bench-results/buf-bench-after.json
@@ -0,0 +1,1349 @@
+{
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diff --git a/bench-results/buf-bench-before-cpu-capped.json b/bench-results/buf-bench-before-cpu-capped.json
new file mode 100644
index 000000000000..acd4d3fb9267
--- /dev/null
+++ b/bench-results/buf-bench-before-cpu-capped.json
@@ -0,0 +1,1349 @@
+{
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+}
diff --git a/bench-results/buf-bench-before.json b/bench-results/buf-bench-before.json
new file mode 100644
index 000000000000..48616eee6bfa
--- /dev/null
+++ b/bench-results/buf-bench-before.json
@@ -0,0 +1,1349 @@
+{
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+            "confidence_level": 0.95,
+            "lower_bound": 4.445666651957314,
+            "upper_bound": 4.931629222953046
+          },
+          "point_estimate": 4.680913910132549,
+          "standard_error": 0.12384807765331754
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 0.8427501511752538,
+            "upper_bound": 1.5220364901603398
+          },
+          "point_estimate": 1.1975592042044096,
+          "standard_error": 0.17493504354774858
+        }
+      }
+    },
+    "simd/memset<u8>/1032": {
+      "baseline": "buf-bench-before",
+      "fullname": "buf-bench-before/simd/memset<u8>/1032",
+      "criterion_benchmark_v1": {
+        "group_id": "simd",
+        "function_id": "memset<u8>",
+        "value_str": "1032",
+        "throughput": {
+          "Bytes": 1032,
+          "Elements": null
+        },
+        "full_id": "simd/memset<u8>/1032",
+        "directory_name": "simd/memset_u8_/1032"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 30.734078269185176,
+            "upper_bound": 34.24430067814582
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+          "point_estimate": 32.48303595739418,
+          "standard_error": 0.8964573665961635
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+        "median": {
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+            "lower_bound": 32.159537060321185,
+            "upper_bound": 34.961284005311896
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+          "point_estimate": 33.91133287467606,
+          "standard_error": 0.8574562658702704
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+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 4.140490852621645,
+            "upper_bound": 9.624317907446509
+          },
+          "point_estimate": 5.400269914548608,
+          "standard_error": 1.4351870448696822
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+        "slope": {
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+            "lower_bound": 26.383333602112693,
+            "upper_bound": 31.817542746194196
+          },
+          "point_estimate": 29.029650826591247,
+          "standard_error": 1.3924583940967017
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+        "std_dev": {
+          "confidence_interval": {
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+            "lower_bound": 7.563010060336757,
+            "upper_bound": 10.432551271230734
+          },
+          "point_estimate": 9.010748568422477,
+          "standard_error": 0.7343381364713586
+        }
+      }
+    },
+    "simd/memset<u8>/40": {
+      "baseline": "buf-bench-before",
+      "fullname": "buf-bench-before/simd/memset<u8>/40",
+      "criterion_benchmark_v1": {
+        "group_id": "simd",
+        "function_id": "memset<u8>",
+        "value_str": "40",
+        "throughput": {
+          "Bytes": 40,
+          "Elements": null
+        },
+        "full_id": "simd/memset<u8>/40",
+        "directory_name": "simd/memset_u8_/40"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7.498822414630043,
+            "upper_bound": 9.005234473206112
+          },
+          "point_estimate": 8.223334908783265,
+          "standard_error": 0.38444312432744426
+        },
+        "median": {
+          "confidence_interval": {
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+            "lower_bound": 6.379118357386136,
+            "upper_bound": 6.946347520520344
+          },
+          "point_estimate": 6.57289433893777,
+          "standard_error": 0.14539065977519677
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 0.6299392017724619,
+            "upper_bound": 1.5362616307149357
+          },
+          "point_estimate": 0.8513343216783339,
+          "standard_error": 0.2339691842290399
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7.948531900515747,
+            "upper_bound": 10.141100011565644
+          },
+          "point_estimate": 8.993830047147467,
+          "standard_error": 0.5609989005452185
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 3.1329932993723353,
+            "upper_bound": 4.4228291707613065
+          },
+          "point_estimate": 3.8602992975883343,
+          "standard_error": 0.3295677334970947
+        }
+      }
+    },
+    "simd/memset<u8>/72": {
+      "baseline": "buf-bench-before",
+      "fullname": "buf-bench-before/simd/memset<u8>/72",
+      "criterion_benchmark_v1": {
+        "group_id": "simd",
+        "function_id": "memset<u8>",
+        "value_str": "72",
+        "throughput": {
+          "Bytes": 72,
+          "Elements": null
+        },
+        "full_id": "simd/memset<u8>/72",
+        "directory_name": "simd/memset_u8_/72"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 10.194071468751964,
+            "upper_bound": 12.17167683732008
+          },
+          "point_estimate": 11.177893693964748,
+          "standard_error": 0.5068359119029737
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7.110778522056565,
+            "upper_bound": 14.108319219528877
+          },
+          "point_estimate": 9.253643917004885,
+          "standard_error": 2.0807504212962034
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2.1193030142108427,
+            "upper_bound": 8.339495427897022
+          },
+          "point_estimate": 5.299246663943546,
+          "standard_error": 1.8136153320401345
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 10.131000340941895,
+            "upper_bound": 12.603873426123814
+          },
+          "point_estimate": 11.303676744479894,
+          "standard_error": 0.6323240522499229
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 4.643320159931279,
+            "upper_bound": 5.458513252149231
+          },
+          "point_estimate": 5.083422957701154,
+          "standard_error": 0.2074263455097922
+        }
+      }
+    },
+    "simd/memset<u8>/8": {
+      "baseline": "buf-bench-before",
+      "fullname": "buf-bench-before/simd/memset<u8>/8",
+      "criterion_benchmark_v1": {
+        "group_id": "simd",
+        "function_id": "memset<u8>",
+        "value_str": "8",
+        "throughput": {
+          "Bytes": 8,
+          "Elements": null
+        },
+        "full_id": "simd/memset<u8>/8",
+        "directory_name": "simd/memset_u8_/8"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 4.85997786842115,
+            "upper_bound": 6.149591987668386
+          },
+          "point_estimate": 5.488449042734878,
+          "standard_error": 0.32904854248924664
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 3.3638318663759774,
+            "upper_bound": 3.85482273168215
+          },
+          "point_estimate": 3.566788197467118,
+          "standard_error": 0.14001614546180996
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 0.34436631605497886,
+            "upper_bound": 1.0587271983246598
+          },
+          "point_estimate": 0.5465677555968135,
+          "standard_error": 0.19787391199794732
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 5.6473247484966,
+            "upper_bound": 7.547035480704039
+          },
+          "point_estimate": 6.6155564833589775,
+          "standard_error": 0.4829692642452512
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2.84753734659944,
+            "upper_bound": 3.630777500172381
+          },
+          "point_estimate": 3.2927520703877113,
+          "standard_error": 0.19999987348162063
+        }
+      }
+    },
+    "unicode::MeasurementConfig::goto_logical/basic": {
+      "baseline": "buf-bench-before",
+      "fullname": "buf-bench-before/unicode::MeasurementConfig::goto_logical/basic",
+      "criterion_benchmark_v1": {
+        "group_id": "unicode::MeasurementConfig::goto_logical",
+        "function_id": "basic",
+        "value_str": null,
+        "throughput": {
+          "Bytes": 3270,
+          "Elements": null
+        },
+        "full_id": "unicode::MeasurementConfig::goto_logical/basic",
+        "directory_name": "unicode__measurementconfig__goto_logical/basic"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 25643.68492155326,
+            "upper_bound": 27067.653857740475
+          },
+          "point_estimate": 26353.136885232427,
+          "standard_error": 363.8881708990111
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 25868.348214285714,
+            "upper_bound": 27031.963315217392
+          },
+          "point_estimate": 26290.43585526316,
+          "standard_error": 270.49126170995373
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1697.5234022919424,
+            "upper_bound": 2918.419568736514
+          },
+          "point_estimate": 2207.860033311417,
+          "standard_error": 296.87571509736244
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 25509.85329191448,
+            "upper_bound": 26610.45677123063
+          },
+          "point_estimate": 26074.299384882517,
+          "standard_error": 280.42504787144185
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2860.9137305424224,
+            "upper_bound": 4389.639273024114
+          },
+          "point_estimate": 3642.855887671062,
+          "standard_error": 391.43691567340545
+        }
+      }
+    },
+    "unicode::MeasurementConfig::goto_logical/word_wrap": {
+      "baseline": "buf-bench-before",
+      "fullname": "buf-bench-before/unicode::MeasurementConfig::goto_logical/word_wrap",
+      "criterion_benchmark_v1": {
+        "group_id": "unicode::MeasurementConfig::goto_logical",
+        "function_id": "word_wrap",
+        "value_str": null,
+        "throughput": {
+          "Bytes": 3270,
+          "Elements": null
+        },
+        "full_id": "unicode::MeasurementConfig::goto_logical/word_wrap",
+        "directory_name": "unicode__measurementconfig__goto_logical/word_wrap"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 31022.04872126824,
+            "upper_bound": 34971.99662636192
+          },
+          "point_estimate": 32991.50113350663,
+          "standard_error": 1004.1035967730368
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 31009.23076923077,
+            "upper_bound": 34081.40625
+          },
+          "point_estimate": 31942.38715277778,
+          "standard_error": 753.8303480155064
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 4467.472316519846,
+            "upper_bound": 8271.255499146913
+          },
+          "point_estimate": 6233.213217463343,
+          "standard_error": 946.901435536496
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 28096.341065620873,
+            "upper_bound": 35043.69972033001
+          },
+          "point_estimate": 31615.485453302794,
+          "standard_error": 1773.1525859244398
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 8258.138238567959,
+            "upper_bound": 11659.536395494531
+          },
+          "point_estimate": 10062.011294651118,
+          "standard_error": 869.695886687492
+        }
+      }
+    },
+    "unicode::Utf8Chars/next": {
+      "baseline": "buf-bench-before",
+      "fullname": "buf-bench-before/unicode::Utf8Chars/next",
+      "criterion_benchmark_v1": {
+        "group_id": "unicode::Utf8Chars",
+        "function_id": "next",
+        "value_str": null,
+        "throughput": {
+          "Bytes": 3270,
+          "Elements": null
+        },
+        "full_id": "unicode::Utf8Chars/next",
+        "directory_name": "unicode__utf8chars/next"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2345.1032934652276,
+            "upper_bound": 2430.7790994077895
+          },
+          "point_estimate": 2382.658084670469,
+          "standard_error": 21.996577253078417
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2322.578893881044,
+            "upper_bound": 2358.612258953168
+          },
+          "point_estimate": 2340.2930609436808,
+          "standard_error": 9.20816100380008
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 54.83987399849302,
+            "upper_bound": 90.73908987333746
+          },
+          "point_estimate": 69.38544121208187,
+          "standard_error": 9.186742260223726
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2337.2815928851733,
+            "upper_bound": 2371.6564655385578
+          },
+          "point_estimate": 2353.9110220723564,
+          "standard_error": 8.756531846865066
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 77.017846630597,
+            "upper_bound": 325.3583612471349
+          },
+          "point_estimate": 221.59304205794888,
+          "standard_error": 62.633967224494555
+        }
+      }
+    }
+  }
+}
diff --git a/benches/lib.rs b/benches/lib.rs
index abc9ee1bdc58..0e9c21a3fc20 100644
--- a/benches/lib.rs
+++ b/benches/lib.rs
@@ -53,7 +53,11 @@ fn bench_buffer(c: &mut Criterion) {
 
         let mut actual = String::new();
         tb.save_as_string(&mut actual);
-        assert_eq!(actual, data.end_content);
+        if actual != data.end_content {
+            // TODO: I did this because the assert prints the entire zst which is sort of obnoxious
+            // no reason to actually keep this change in a final version
+            panic!("assertion `left == right` failed")
+        }
     }
 
     let bench_gap_buffer = || {
diff --git a/buf-bench-after-cpu-capped.json b/buf-bench-after-cpu-capped.json
new file mode 100644
index 000000000000..cc620fb9caa4
--- /dev/null
+++ b/buf-bench-after-cpu-capped.json
@@ -0,0 +1,1349 @@
+{
+  "name": "buf-bench-after-cpu-capped",
+  "benchmarks": {
+    "buffer/GapBuffer/rustcode": {
+      "baseline": "buf-bench-after-cpu-capped",
+      "fullname": "buf-bench-after-cpu-capped/buffer/GapBuffer/rustcode",
+      "criterion_benchmark_v1": {
+        "group_id": "buffer",
+        "function_id": "GapBuffer",
+        "value_str": "rustcode",
+        "throughput": null,
+        "full_id": "buffer/GapBuffer/rustcode",
+        "directory_name": "buffer/gapbuffer/rustcode"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1304954.3051195876,
+            "upper_bound": 1587869.30466561
+          },
+          "point_estimate": 1440999.7402890346,
+          "standard_error": 72549.04876414419
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1064577.551020408,
+            "upper_bound": 1198563.043478261
+          },
+          "point_estimate": 1112824.871794872,
+          "standard_error": 37079.5854539093
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 169185.48666325258,
+            "upper_bound": 338017.9679989815
+          },
+          "point_estimate": 219792.1514312426,
+          "standard_error": 43163.10906111767
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 1568068.1188616017,
+            "upper_bound": 2113298.2779949554
+          },
+          "point_estimate": 1852473.261415694,
+          "standard_error": 138919.6096693533
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 580740.0461571118,
+            "upper_bound": 841424.6410647158
+          },
+          "point_estimate": 727271.6573091117,
+          "standard_error": 66225.00906458888
+        }
+      }
+    },
+    "buffer/TextBuffer/rustcode": {
+      "baseline": "buf-bench-after-cpu-capped",
+      "fullname": "buf-bench-after-cpu-capped/buffer/TextBuffer/rustcode",
+      "criterion_benchmark_v1": {
+        "group_id": "buffer",
+        "function_id": "TextBuffer",
+        "value_str": "rustcode",
+        "throughput": null,
+        "full_id": "buffer/TextBuffer/rustcode",
+        "directory_name": "buffer/textbuffer/rustcode"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 48866893.8625,
+            "upper_bound": 52316276.2375
+          },
+          "point_estimate": 50548633.0,
+          "standard_error": 879993.3850367628
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 46145850.0,
+            "upper_bound": 50767325.0
+          },
+          "point_estimate": 47564150.0,
+          "standard_error": 1187347.1160730966
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 5533952.661752701,
+            "upper_bound": 9933345.69364786
+          },
+          "point_estimate": 7041868.029981852,
+          "standard_error": 1126818.6362877204
+        },
+        "slope": null,
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 7490026.882921002,
+            "upper_bound": 10083153.166447628
+          },
+          "point_estimate": 8887349.722846104,
+          "standard_error": 663131.374111386
+        }
+      }
+    },
+    "hash/hash/1024": {
+      "baseline": "buf-bench-after-cpu-capped",
+      "fullname": "buf-bench-after-cpu-capped/hash/hash/1024",
+      "criterion_benchmark_v1": {
+        "group_id": "hash",
+        "function_id": "hash",
+        "value_str": "1024",
+        "throughput": {
+          "Bytes": 1024,
+          "Elements": null
+        },
+        "full_id": "hash/hash/1024",
+        "directory_name": "hash/hash/1024"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 38.761183704064656,
+            "upper_bound": 40.21495111575594
+          },
+          "point_estimate": 39.37361722796558,
+          "standard_error": 0.3759357733944275
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 38.151418830633546,
+            "upper_bound": 38.57878268364202
+          },
+          "point_estimate": 38.40234656265351,
+          "standard_error": 0.13816048395463498
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 0.4589452374509808,
+            "upper_bound": 1.000402795915409
+          },
+          "point_estimate": 0.7639590482085801,
+          "standard_error": 0.16310576617275543
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 38.58122177104381,
+            "upper_bound": 39.41998017968161
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+}
diff --git a/buf-bench-after.json b/buf-bench-after.json
new file mode 100644
index 000000000000..b9d366cfda47
--- /dev/null
+++ b/buf-bench-after.json
@@ -0,0 +1,1349 @@
+{
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diff --git a/buf-bench-before.json b/buf-bench-before.json
new file mode 100644
index 000000000000..48616eee6bfa
--- /dev/null
+++ b/buf-bench-before.json
@@ -0,0 +1,1349 @@
+{
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+            "lower_bound": 28096.341065620873,
+            "upper_bound": 35043.69972033001
+          },
+          "point_estimate": 31615.485453302794,
+          "standard_error": 1773.1525859244398
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 8258.138238567959,
+            "upper_bound": 11659.536395494531
+          },
+          "point_estimate": 10062.011294651118,
+          "standard_error": 869.695886687492
+        }
+      }
+    },
+    "unicode::Utf8Chars/next": {
+      "baseline": "buf-bench-before",
+      "fullname": "buf-bench-before/unicode::Utf8Chars/next",
+      "criterion_benchmark_v1": {
+        "group_id": "unicode::Utf8Chars",
+        "function_id": "next",
+        "value_str": null,
+        "throughput": {
+          "Bytes": 3270,
+          "Elements": null
+        },
+        "full_id": "unicode::Utf8Chars/next",
+        "directory_name": "unicode__utf8chars/next"
+      },
+      "criterion_estimates_v1": {
+        "mean": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2345.1032934652276,
+            "upper_bound": 2430.7790994077895
+          },
+          "point_estimate": 2382.658084670469,
+          "standard_error": 21.996577253078417
+        },
+        "median": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2322.578893881044,
+            "upper_bound": 2358.612258953168
+          },
+          "point_estimate": 2340.2930609436808,
+          "standard_error": 9.20816100380008
+        },
+        "median_abs_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 54.83987399849302,
+            "upper_bound": 90.73908987333746
+          },
+          "point_estimate": 69.38544121208187,
+          "standard_error": 9.186742260223726
+        },
+        "slope": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 2337.2815928851733,
+            "upper_bound": 2371.6564655385578
+          },
+          "point_estimate": 2353.9110220723564,
+          "standard_error": 8.756531846865066
+        },
+        "std_dev": {
+          "confidence_interval": {
+            "confidence_level": 0.95,
+            "lower_bound": 77.017846630597,
+            "upper_bound": 325.3583612471349
+          },
+          "point_estimate": 221.59304205794888,
+          "standard_error": 62.633967224494555
+        }
+      }
+    }
+  }
+}
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 5d56faf9ae08..f103853b5d4d 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,4 @@
 [toolchain]
+# channel = "nightly-2025-04-15"
+# components = ["miri", "rust-analyzer", "rustfmt"]
 channel = "nightly"
diff --git a/src/buffer/gap_buffer.rs b/src/buffer/gap_buffer.rs
index d19da1b0fdef..912796bf4099 100644
--- a/src/buffer/gap_buffer.rs
+++ b/src/buffer/gap_buffer.rs
@@ -2,12 +2,11 @@
 // Licensed under the MIT License.
 
 use std::ops::Range;
-use std::ptr::{self, NonNull};
-use std::slice;
 
+use super::virtual_mem::VirtualMemory;
+use crate::apperr;
 use crate::document::{ReadableDocument, WriteableDocument};
 use crate::helpers::*;
-use crate::{apperr, sys};
 
 #[cfg(target_pointer_width = "32")]
 const LARGE_CAPACITY: usize = 128 * MEBI;
@@ -23,27 +22,15 @@ const SMALL_GAP_CHUNK: usize = 16;
 // TODO: Instead of having a specialization for small buffers here,
 // tui.rs could also just keep a MRU set of large buffers around.
 enum BackingBuffer {
-    VirtualMemory(NonNull<u8>, usize),
+    VirtualMemory(VirtualMemory),
     Vec(Vec<u8>),
 }
 
-impl Drop for BackingBuffer {
-    fn drop(&mut self) {
-        unsafe {
-            if let Self::VirtualMemory(ptr, reserve) = *self {
-                sys::virtual_release(ptr, reserve);
-            }
-        }
-    }
-}
-
 /// Most people know how Vec<T> works: It has some spare capacity at the end,
 /// so that pushing into it doesn't reallocate every single time. A gap buffer
 /// is the same thing, but the spare capacity can be anywhere in the buffer.
 /// This variant is optimized for large buffers and uses virtual memory.
 pub struct GapBuffer {
-    /// Pointer to the buffer.
-    text: NonNull<u8>,
     /// Maximum size of the buffer, including gap.
     reserve: usize,
     /// Size of the buffer, including gap.
@@ -65,20 +52,16 @@ impl GapBuffer {
     pub fn new(small: bool) -> apperr::Result<Self> {
         let reserve;
         let buffer;
-        let text;
 
         if small {
             reserve = SMALL_CAPACITY;
-            text = NonNull::dangling();
             buffer = BackingBuffer::Vec(Vec::new());
         } else {
             reserve = LARGE_CAPACITY;
-            text = unsafe { sys::virtual_reserve(reserve)? };
-            buffer = BackingBuffer::VirtualMemory(text, reserve);
+            buffer = BackingBuffer::VirtualMemory(unsafe { VirtualMemory::new(LARGE_CAPACITY) });
         }
 
         Ok(Self {
-            text,
             reserve,
             commit: 0,
             text_length: 0,
@@ -124,7 +107,13 @@ impl GapBuffer {
         }
 
         self.generation = self.generation.wrapping_add(1);
-        unsafe { slice::from_raw_parts_mut(self.text.add(self.gap_off).as_ptr(), self.gap_len) }
+
+        match &mut self.buffer {
+            BackingBuffer::VirtualMemory(buf) => {
+                &mut buf[self.gap_off..self.gap_off + self.gap_len]
+            }
+            BackingBuffer::Vec(buf) => &mut buf[self.gap_off..self.gap_off + self.gap_len],
+        }
     }
 
     fn move_gap(&mut self, off: usize) {
@@ -147,11 +136,23 @@ impl GapBuffer {
             let move_dst = if left { off + self.gap_len } else { self.gap_off };
             let move_len = if left { self.gap_off - off } else { off - self.gap_off };
 
-            unsafe { self.text.add(move_src).copy_to(self.text.add(move_dst), move_len) };
+            match &mut self.buffer {
+                BackingBuffer::VirtualMemory(buf) => {
+                    buf.copy_within(move_src..move_src + move_len, move_dst)
+                }
+                BackingBuffer::Vec(vec) => vec.copy_within(move_src..move_src + move_len, move_dst),
+            }
 
             if cfg!(debug_assertions) {
                 // Fill the moved-out bytes with 0xCD to make debugging easier.
-                unsafe { self.text.add(off).write_bytes(0xCD, self.gap_len) };
+                match &mut self.buffer {
+                    BackingBuffer::VirtualMemory(buf) => unsafe {
+                        buf.as_mut_ptr().add(off).write_bytes(0xCD, self.gap_len)
+                    },
+                    BackingBuffer::Vec(buf) => unsafe {
+                        buf.as_mut_ptr().add(off).write_bytes(0xCD, self.gap_len)
+                    },
+                }
             }
         }
 
@@ -161,7 +162,15 @@ impl GapBuffer {
     fn delete_text(&mut self, delete: usize) {
         if cfg!(debug_assertions) {
             // Fill the deleted bytes with 0xCD to make debugging easier.
-            unsafe { self.text.add(self.gap_off + self.gap_len).write_bytes(0xCD, delete) };
+            let old_gap = self.gap_off + self.gap_len;
+            match &mut self.buffer {
+                BackingBuffer::VirtualMemory(buf) => unsafe {
+                    buf.as_mut_ptr().add(old_gap).write_bytes(0xCD, self.gap_len)
+                },
+                BackingBuffer::Vec(buf) => unsafe {
+                    buf.as_mut_ptr().add(old_gap).write_bytes(0xCD, self.gap_len)
+                },
+            }
         }
 
         self.gap_len += delete;
@@ -186,6 +195,8 @@ impl GapBuffer {
         let bytes_old = self.commit;
         let bytes_new = self.text_length + gap_len_new;
 
+        // If the size of the new buf after expanding the gap is larger the an the currently committed range,
+        // we have to expand the commited range
         if bytes_new > bytes_old {
             let bytes_new = (bytes_new + alloc_chunk - 1) & !(alloc_chunk - 1);
 
@@ -194,32 +205,43 @@ impl GapBuffer {
             }
 
             match &mut self.buffer {
-                BackingBuffer::VirtualMemory(ptr, _) => unsafe {
-                    if sys::virtual_commit(ptr.add(bytes_old), bytes_new - bytes_old).is_err() {
+                BackingBuffer::VirtualMemory(buf) => unsafe {
+                    if buf.commit(bytes_new - bytes_old).is_err() {
                         return;
                     }
                 },
-                BackingBuffer::Vec(v) => {
-                    v.resize(bytes_new, 0);
-                    self.text = unsafe { NonNull::new_unchecked(v.as_mut_ptr()) };
+                BackingBuffer::Vec(buf) => {
+                    buf.resize(bytes_new, 0);
                 }
             }
 
             self.commit = bytes_new;
         }
 
-        let gap_beg = unsafe { self.text.add(self.gap_off) };
-        unsafe {
-            ptr::copy(
-                gap_beg.add(gap_len_old).as_ptr(),
-                gap_beg.add(gap_len_new).as_ptr(),
-                self.text_length - self.gap_off,
-            )
+        // When the gap expands, it will consume the contents bordering it.
+        // Those contents need to be moved out of the newly enlarged gap
+        let gap_end_old = self.gap_off + gap_len_old;
+        let gap_end_new = self.gap_off + gap_len_new;
+        let buf_contents_len = self.text_length - self.gap_off;
+        match &mut self.buffer {
+            BackingBuffer::VirtualMemory(buf) => {
+                buf.copy_within(gap_end_old..gap_end_old + buf_contents_len, gap_end_new);
+            }
+            BackingBuffer::Vec(buf) => {
+                buf.copy_within(gap_end_old..gap_end_old + buf_contents_len, gap_end_new);
+            }
         };
 
         if cfg!(debug_assertions) {
             // Fill the moved-out bytes with 0xCD to make debugging easier.
-            unsafe { gap_beg.add(gap_len_old).write_bytes(0xCD, gap_len_new - gap_len_old) };
+            match &mut self.buffer {
+                BackingBuffer::VirtualMemory(buf) => unsafe {
+                    buf.as_mut_ptr().add(gap_len_old).write_bytes(0xCD, gap_len_new - gap_len_old)
+                },
+                BackingBuffer::Vec(buf) => unsafe {
+                    buf.as_mut_ptr().add(gap_len_old).write_bytes(0xCD, gap_len_new - gap_len_old)
+                },
+            }
         }
 
         self.gap_len = gap_len_new;
@@ -344,7 +366,10 @@ impl ReadableDocument for GapBuffer {
             len = self.text_length - off;
         }
 
-        unsafe { slice::from_raw_parts(self.text.add(beg).as_ptr(), len) }
+        match &self.buffer {
+            BackingBuffer::VirtualMemory(buf) => &buf[beg..beg + len],
+            BackingBuffer::Vec(buf) => &buf[beg..beg + len],
+        }
     }
 
     fn read_backward(&self, off: usize) -> &[u8] {
@@ -364,6 +389,9 @@ impl ReadableDocument for GapBuffer {
             len = off - self.gap_off;
         }
 
-        unsafe { slice::from_raw_parts(self.text.add(beg).as_ptr(), len) }
+        match &self.buffer {
+            BackingBuffer::VirtualMemory(buf) => &buf[beg..beg + len],
+            BackingBuffer::Vec(buf) => &buf[beg..beg + len],
+        }
     }
 }
diff --git a/src/buffer/mod.rs b/src/buffer/mod.rs
index 15db6d97f25b..835309cb06ed 100644
--- a/src/buffer/mod.rs
+++ b/src/buffer/mod.rs
@@ -22,6 +22,7 @@
 
 mod gap_buffer;
 mod navigation;
+mod virtual_mem;
 
 use std::borrow::Cow;
 use std::cell::UnsafeCell;
diff --git a/src/buffer/virtual_mem.rs b/src/buffer/virtual_mem.rs
new file mode 100644
index 000000000000..6a1b7e0b2b77
--- /dev/null
+++ b/src/buffer/virtual_mem.rs
@@ -0,0 +1,149 @@
+use std::ops::{self, Deref, DerefMut, Range, RangeBounds};
+use std::ptr::{self, NonNull};
+use std::slice;
+
+use crate::{apperr, sys};
+
+/// A smart pointer to a virtual memory allocation obtained from [`VirtualAlloc`] on Windows or [`mmap`] on Unix-based OSes.
+///
+/// # Warning
+///
+/// Virtual memory is commited "as needed".
+/// Attempting to access [uncommited] memory is a status access violation.
+///
+/// [VirtualAlloc]: https://learn.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-virtualalloc
+/// [mmao]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/mmap.html
+/// [uncommited]: https://learn.microsoft.com/en-us/windows/win32/Memory/page-state
+pub struct VirtualMemory {
+    // TODO: Is it uniquely owned? I believe it is.
+    /// A pointer to an owned virtual memory allocation.
+    ptr: NonNull<u8>,
+    /// The size of the underlying allocation.
+    size: usize,
+    // TODO: Do I need to track which portions of memory are uncommited?
+    // This is inefficent because the gap buffer struct already holds this same value.
+    /// The size of the allocation's commited memory.
+    commited: usize,
+}
+
+impl VirtualMemory {
+    /// Create a new block of virtual memory.
+    pub unsafe fn new(size: usize) -> Self {
+        // The align is one because `T` is a byte
+        Self { ptr: unsafe { sys::virtual_reserve(size).unwrap() }, size, commited: 0 }
+    }
+
+    /// Commit another `size` bytes. Return a result indicating success.
+    pub unsafe fn commit(&mut self, size: usize) -> apperr::Result<()> {
+        // Check the range is contained within the allocation
+        // TODO: this might be redundant since commit also checks if it's a legal commit
+        // It also seems to substantially slow down the function so omit for now
+        // assert!(
+        //     self.size >= self.len() + size,
+        //     "Index {} is greater than the allocation {}.",
+        //     self.len() + size,
+        //     self.size
+        // );
+
+        let out = unsafe { sys::virtual_commit(self.ptr.add(self.commited), size) };
+        // Update commited
+        self.commited += size;
+        out
+    }
+
+    /// This method is based on [`slice::copy_within`](https://doc.rust-lang.org/src/core/slice/mod.rs.html#3792-3794).
+    /// Copies elements from one part of the virtual memory block to another part of itself,
+    /// using a memmove.
+    ///
+    /// - `src` is the range within `self` to copy from.
+    /// - `dest` is the starting index of the range within `self` to copy to, which will have the same
+    /// length as `src`.
+    ///
+    /// `src` and `dst` may overlap. The ends of the two ranges must be less than or equal to `self.len()`.
+    ///
+    ///
+    /// # Panics
+    ///
+    /// - `src` or `dst..dst + src.len()` exceeds the end of the slice.
+    /// - The end of `src` is before the start.
+    pub fn copy_within<R: RangeBounds<usize>>(&mut self, src: R, dst: usize) {
+        // This is all basically copied directly from `copy_within`
+        // The main change I made was changing the bounds check from the len of the slice to the len of commited
+        let Range { start: src_start, end: src_end } = range(src, ..self.len());
+        let count = src_end - src_start;
+        // TODO: Confirm using this slice len which is the commited portion of the VM is sound.
+        assert!(dst <= self.len() - count, "dst is out of bounds");
+        // SAFETY: the conditions for `ptr::copy` have all been checked above,
+        // as have those for `ptr::add`.
+        unsafe {
+            // Derive both `src_ptr` and `dest_ptr` from the same loan
+            let ptr = self.ptr.as_ptr();
+            let src_ptr = ptr.add(src_start);
+            let dst_ptr = ptr.add(dst);
+            ptr::copy(src_ptr, dst_ptr, count);
+        }
+    }
+}
+
+// TODO: Is this necessary?
+impl Deref for VirtualMemory {
+    type Target = [u8];
+
+    /// Returns a slice containing the commited portion of the virtual memory allocation.
+    fn deref(&self) -> &Self::Target {
+        unsafe { slice::from_raw_parts(self.ptr.as_ptr(), self.commited) }
+    }
+}
+
+impl DerefMut for VirtualMemory {
+    /// Returns a mutable slice containing the commited portion of the virtual memory allocation.
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        unsafe { slice::from_raw_parts_mut(self.ptr.as_ptr(), self.commited) }
+    }
+}
+
+unsafe impl Send for VirtualMemory {}
+unsafe impl Sync for VirtualMemory {}
+
+impl Drop for VirtualMemory {
+    fn drop(&mut self) {
+        unsafe { sys::virtual_release(self.ptr, self.size) };
+    }
+}
+
+// TODO: This should probably end up in helpers in a final version
+/// Implementation of [`slice::range`](https://doc.rust-lang.org/src/core/slice/index.rs.html#835-837). Exists because `slice::range` is unstable.
+fn range<R: RangeBounds<usize>>(range: R, bounds: ops::RangeTo<usize>) -> Range<usize> {
+    let len = bounds.end;
+
+    // TODO: In a final version it may be better for this to error in a recoverable way
+    let start = match range.start_bound() {
+        ops::Bound::Included(&start) => start,
+        ops::Bound::Excluded(start) => start
+            .checked_add(1)
+            .unwrap_or_else(|| panic!("attempted to index slice from after maximum usize")),
+        ops::Bound::Unbounded => 0,
+    };
+
+    let end = match range.end_bound() {
+        ops::Bound::Included(end) => end
+            .checked_add(1)
+            .unwrap_or_else(|| panic!("attempted to index slice up to maximum usize")),
+        ops::Bound::Excluded(&end) => end,
+        ops::Bound::Unbounded => len,
+    };
+
+    if start > end {
+        // slice_index_order_fail(start, end);
+        panic!(
+            "slice index start is larger than end slice index starts at {start} but ends at {end}",
+        )
+    }
+    if end > len {
+        panic!(
+            "slice end index is out of range for slice range end index {end} out of range for slice of length {len}"
+        )
+    }
+
+    ops::Range { start, end }
+}
diff --git a/src/sys/windows.rs b/src/sys/windows.rs
index 76446ddaa0d2..93d5f0a2548d 100644
--- a/src/sys/windows.rs
+++ b/src/sys/windows.rs
@@ -482,6 +482,10 @@ pub fn canonicalize(path: &Path) -> std::io::Result<PathBuf> {
 /// To commit the memory, use [`virtual_commit`].
 /// To release the memory, use [`virtual_release`].
 ///
+/// # Warning
+/// The pointer returned by this function must be committed before use. Attempting to access [uncommited](https://learn.microsoft.com/en-us/windows/win32/Memory/page-state) memory is a status access violation.
+///
+///
 /// # Safety
 ///
 /// This function is unsafe because it uses raw pointers.