Am 2019-05-13 16:20, schrieb mich...@fritscher.net:
Good day,
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.
Best regards,
Michal Fritscher
For reference, on VWare Player I've even _no_ hpet_read. Seem I need to
dig into OpenVPN further. Could be a bad time jitter or something cause
the problem?
Best regards,
Michael Fritscher
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