| Name : golang-github-hodgesds-perf-utils-devel
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| Version : 0.5.1
| Vendor : Fedora Project
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| Release : 1.fc35
| Date : 2022-01-14 16:29:56
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| Group : Unspecified
| Source RPM : golang-github-hodgesds-perf-utils-0.5.1-1.fc35.src.rpm
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| Size : 0.17 MB
| |
| Packager : Fedora Project
| |
| 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.
This package contains the source code needed for building packages that
reference the following Go import paths:
– github.com/hodgesds/perf-utils
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RPM found in directory: /packages/linux-pbone/archive.fedoraproject.org/fedora/linux/updates/35/Everything/armhfp/Packages/g |
