Hi, On Mon, May 13, 2019 at 04:20:41PM +0200, [email protected] wrote: > I experienced a high system cpu usage of OpenVPN in qemu on Windows. > Both with hax and whpx (kvm-like accelerators). Apparently, it does make > calls to hpet_read (or acpi_pm_read if hpet is disabled) with 1 kHz. > This makes a overhead ov over 85% regarding the "perf" program. > Is that normal? It seems to only happen on the server, which also > streams UDP packets with about 1 MB/sec.
If you have rate-limiting configured on the server, it needs to
check time vs. buckets - that could be one of the reasons.
Or if you have too much debugging configured and it needs to timestamp
(lots of) debug lines written out...
gert
--
"If was one thing all people took for granted, was conviction that if you
feed honest figures into a computer, honest figures come out. Never doubted
it myself till I met a computer with a sense of humor."
Robert A. Heinlein, The Moon is a Harsh Mistress
Gert Doering - Munich, Germany [email protected]
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