[konsole] [Bug 492896] Resizing embedded terminal requires quite some CPU power

[0BADC0DE]

https://bugs.kde.org/show_bug.cgi?id=492896

--- Comment #4 from 0BADC0DE <vincenzo.romano at gmail.com> ---
[code]
$ perf record -o /home/user/perf.data --call-graph dwarf,8192 --aio -z
--sample-cpu --mmap-pages 16M --pid 7327
Permission error mapping pages.
Consider increasing /proc/sys/kernel/perf_event_mlock_kb,
or try again with a smaller value of -m/--mmap_pages.
(current value: 4096,0)

recording failed after 012.12039ms: Failed to record perf data, error code 255.
[/code]

I think I am still missing something in my ArchLinux box. I don't know perf,
anyway.

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