Information for build golang-github-hodgesds-perf-utils-0.2.5-1.fc33
| ID | 194960 | |||||||
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| Package Name | golang-github-hodgesds-perf-utils | |||||||
| Version | 0.2.5 | |||||||
| Release | 1.fc33 | |||||||
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| Summary | Perf Utilities for Go | |||||||
| Description | This package is a go library for interacting with the perf subsystem in Linux. I had trouble finding a golang perf library so I decided to write this by using the linux’s perf as a reference. This library allows you to do things like see how many CPU instructions a function takes (roughly), profile a process for various hardware events, and other interesting things. Note that because the go scheduler can schedule a goroutine across many OS threads it becomes rather difficult to get an exact profile of an invididual goroutine. However, a few tricks can be used; first a call to runtime.LockOSThread to lock the current goroutine to an OS thread. Second a call to unix.SchedSetaffinity, with a CPU set mask set. Note that if the pid argument is set 0 the calling thread is used (the thread that was just locked). Before using this library you should probably read the perf_event_open man page which this library uses heavily. See this kernel guide for a tutorial how to use perf and some of the limitations. | |||||||
| Built by | davidlt | |||||||
| State | complete | |||||||
| Volume | DEFAULT | |||||||
| Started | Sat, 24 Apr 2021 06:57:04 UTC | |||||||
| Completed | Sat, 24 Apr 2021 06:57:04 UTC | |||||||
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| Changelog | * Wed Feb 17 2021 Robert-André Mauchin <zebob.m@gmail.com> - 0.2.5-1 - Initial package |
