Josh Bleecher Snyder josharian
josharian
/ md5block.go
Created
November 3, 2021 23:52
rewrite of generic md5 go code to be friendlier to the register allocator
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| // Copyright 2013 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| // Code generated by go run gen.go -output md5block.go; DO NOT EDIT. | |
| package md5 | |
| import ( | |
| // "encoding/binary" |
josharian
/ iossize.go
Last active
February 19, 2023 14:21
calculate dirty data pages for macho binary
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| // Command iossize predicts the impact | |
| // on memory usage of changes to the binary. | |
| // | |
| // This implementation uses dyldinfo to determine | |
| // exactly how much memory the dynamic linker will dirty | |
| // as part of launching the executable. | |
| // | |
| // It is not perfect. There are multiple sources of dirty pages: | |
| // | |
| // 1. dynamic loader rebase/relocs due to our code |
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| (lldb) bt | |
| * thread #14, stop reason = EXC_BAD_ACCESS (code=2, address=0x70000228b000) | |
| * frame #0: 0x0000000004b88761 bug.report.test`Builtins_CallVarargs + 97 | |
| frame #1: 0x0000000004b8fb81 bug.report.test`Builtins_InterpreterEntryTrampoline + 225 | |
| frame #2: 0x000007740009a3e2 | |
| frame #3: 0x0000000004b8fb81 bug.report.test`Builtins_InterpreterEntryTrampoline + 225 | |
| frame #4: 0x0000000004b8fb81 bug.report.test`Builtins_InterpreterEntryTrampoline + 225 | |
| frame #5: 0x0000000004b8fb81 bug.report.test`Builtins_InterpreterEntryTrampoline + 225 | |
| frame #6: 0x0000000004b8fb81 bug.report.test`Builtins_InterpreterEntryTrampoline + 225 | |
| frame #7: 0x0000000004b8fb81 bug.report.test`Builtins_InterpreterEntryTrampoline + 225 |
josharian
/ gist:6021b95602f3ae70820bf20ec80147ee
Created
August 19, 2020 22:52
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| [Trace - 15:51:36.049 PM] Sending request 'initialize - (0)'. | |
| Params: {"processId":79571,"clientInfo":{"name":"vscode","version":"1.48.0"},"rootPath":"/Users/josh/src/vscb","rootUri":"file:///Users/josh/src/vscb","capabilities":{"workspace":{"applyEdit":true,"workspaceEdit":{"documentChanges":true,"resourceOperations":["create","rename","delete"],"failureHandling":"textOnlyTransactional"},"didChangeConfiguration":{"dynamicRegistration":true},"didChangeWatchedFiles":{"dynamicRegistration":true},"symbol":{"dynamicRegistration":true,"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]}},"executeCommand":{"dynamicRegistration":true},"configuration":true,"workspaceFolders":true},"textDocument":{"publishDiagnostics":{"relatedInformation":true,"versionSupport":false,"tagSupport":{"valueSet":[1,2]}},"synchronization":{"dynamicRegistration":true,"willSave":true,"willSaveWaitUntil":true,"didSave":true},"completion":{"dynamicRegistration":true,"contextSupport":true,"completionI |
josharian
/ gist:8988e3c49fe5544d1e5808248a776c0e
Created
August 19, 2020 22:50
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| [Trace - 15:49:20.016 PM] Sending request 'initialize - (0)'. | |
| Params: {"processId":78921,"clientInfo":{"name":"vscode","version":"1.48.0"},"rootPath":"/Users/josh/src/vscb","rootUri":"file:///Users/josh/src/vscb","capabilities":{"workspace":{"applyEdit":true,"workspaceEdit":{"documentChanges":true,"resourceOperations":["create","rename","delete"],"failureHandling":"textOnlyTransactional"},"didChangeConfiguration":{"dynamicRegistration":true},"didChangeWatchedFiles":{"dynamicRegistration":true},"symbol":{"dynamicRegistration":true,"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]}},"executeCommand":{"dynamicRegistration":true},"configuration":true,"workspaceFolders":true},"textDocument":{"publishDiagnostics":{"relatedInformation":true,"versionSupport":false,"tagSupport":{"valueSet":[1,2]}},"synchronization":{"dynamicRegistration":true,"willSave":true,"willSaveWaitUntil":true,"didSave":true},"completion":{"dynamicRegistration":true,"contextSupport":true,"completionI |
josharian
/ transcript.txt
Created
August 19, 2020 21:17
vscode transcript for https://github.com/golang/go/issues/40825
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| [Trace - 14:15:20.682 PM] Sending request 'initialize - (0)'. | |
| Params: {"processId":76152,"clientInfo":{"name":"vscode","version":"1.47.3"},"rootPath":"/Users/josh/src/github.com/josharian/vscb","rootUri":"file:///Users/josh/src/github.com/josharian/vscb","capabilities":{"workspace":{"applyEdit":true,"workspaceEdit":{"documentChanges":true,"resourceOperations":["create","rename","delete"],"failureHandling":"textOnlyTransactional"},"didChangeConfiguration":{"dynamicRegistration":true},"didChangeWatchedFiles":{"dynamicRegistration":true},"symbol":{"dynamicRegistration":true,"symbolKind":{"valueSet":[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26]}},"executeCommand":{"dynamicRegistration":true},"configuration":true,"workspaceFolders":true},"textDocument":{"publishDiagnostics":{"relatedInformation":true,"versionSupport":false,"tagSupport":{"valueSet":[1,2]}},"synchronization":{"dynamicRegistration":true,"willSave":true,"willSaveWaitUntil":true,"didSave":true},"completion":{"dynamicRegistratio |
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| goroutine profile: total 48 | |
| 10 @ 0x1038570 0x10484d3 0x142a762 0x14fa5ed 0x1490f96 0x1067b91 | |
| # 0x142a761 github.com/pion/transport/packetio.(*Buffer).Read+0x141 /Users/josh/pkg/mod/github.com/pion/[email protected]/packetio/buffer.go:146 | |
| # 0x14fa5ec github.com/pion/webrtc/v2/internal/mux.(*Endpoint).Read+0x4c /Users/josh/pkg/mod/github.com/pion/webrtc/[email protected]/internal/mux/endpoint.go:36 | |
| # 0x1490f95 github.com/pion/srtp.(*session).start.func1+0xb5 /Users/josh/pkg/mod/github.com/pion/[email protected]/session.go:130 | |
| 5 @ 0x1038570 0x1007b37 0x100783b 0x148b815 0x1528dd2 0x1067b91 | |
| # 0x148b814 github.com/pion/srtp.(*SessionSRTCP).AcceptStream+0x44 /Users/josh/pkg/mod/github.com/pion/[email protected]/session_srtcp.go:92 | |
| # 0x1528dd1 github.com/pion/webrtc/v2.(*PeerConnection).drainSRTP.func3+0xa1 /Users/josh/pkg/mod/github.com/pion/webrtc/[email protected]/peerconnection.go:1102 |
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| // Demo of playing opus audio into a webrtc session on macOS. | |
| // To install required packages/commands: | |
| // brew install ffmpeg pkg-config opus opusfile | |
| // Then run this server, and visit http://localhost:2021/ in a browser. | |
| package main | |
| import ( | |
| "encoding/binary" | |
| "encoding/json" |
josharian
/ causalprof_compiler.diff
Created
June 13, 2019 20:13
attempt to instrument the compiler for causal profiling
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| diff --git a/src/cmd/compile/internal/gc/main.go b/src/cmd/compile/internal/gc/main.go | |
| index dc3fb64e27..21e211e339 100644 | |
| --- a/src/cmd/compile/internal/gc/main.go | |
| +++ b/src/cmd/compile/internal/gc/main.go | |
| @@ -27,6 +27,7 @@ import ( | |
| "path" | |
| "regexp" | |
| "runtime" | |
| + "runtime/causalprof" | |
| "strconv" |
josharian
/ gist:cba98a51403692ce00dcda156bd13af2
Created
April 22, 2019 01:58
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| digraph { | |
| rankdir=LR; | |
| "github.com/josharian/depcut"; | |
| "bytes"; | |
| "errors"; | |
| "internal/bytealg"; | |
| "internal/cpu"; | |
| "unsafe"; | |
| "io"; | |
| "sync"; |