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Server : Apache System : Linux server.mata-lashes.com 3.10.0-1160.90.1.el7.x86_64 #1 SMP Thu May 4 15:21:22 UTC 2023 x86_64 User : matalashes ( 1004) PHP Version : 8.1.29 Disable Function : NONE Directory : /proc/17567/root/usr/share/systemtap/examples/memory/ |
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#!/usr/bin/stap
global huge_cow
probe kernel.function("copy_user_huge_page").return
{
huge_cow [execname(), pid()]
<<< (gettimeofday_us() - @entry(gettimeofday_us()))
}
probe begin { printf("Collecting data... press Ctrl-C to stop.\n") }
probe end
{
printf("\n")
foreach([name, p] in huge_cow-) {
printf("%16s(%5d) count=%d sum(us)=%d avg(us)=%d\n",
name, p, @count(huge_cow[name,p]),
@sum(huge_cow[name,p]),
@avg(huge_cow[name,p]))
}
}