On 4/14/25 5:20 PM, Steven Rostedt wrote:
> It's useful for me ;-)
> The above shows a histogram in microseconds where the buckets increase in a
> power of two. The biggest bucket is between 2^4 (16) and 2^5 (32) microseconds
> with 108790 hits.
With patch v2, I can do something similar in bpftrace too. :)
tracepoint:exceptions:page_fault_enter
/ args.user_mode == true /
{
@start[tid] = nsecs;
}
tracepoint:exceptions:page_fault_exit
/ args.user_mode == true /
{
@lat[tid] = hist(nsecs - @start[tid]);
}
Junxuan
