[tor-relays] 100% CPU load on Windows Server 2019

[teor]

Hi,

> On 18 Feb 2020, at 06:10, Michael Gerstacker <michael.gerstacker at googlemail.com> wrote:
> 
> Once the consensus diffs are processed the load drops to normal.
> After some time without anything noticeable for me in the debug logs the CPU suddenly jumps to 100% again and stays there till another consensus diffs are arriving.
> 
> Its not as worse as it was the first two days where i had 100% CPU load half of the time but i still have this about 10-15 times a day for a few seconds or minutes each.
> For the next few minutes after the CPU dropped to normal the throughput is close to zero so this cant be good for clients.
> 
> It would be nice to have a fix in 0.4.4 stable or earlier so that i can decide if i want to buy a Windows license key or rather shut it down.

Does setting "DirCache 0" in your torrc resolve the issue?

There's a suggested patch on the ticket:
https://trac.torproject.org/projects/tor/ticket/24857#comment:39

But we've had trouble getting people to help with Windows development
and testing.

Can you compile tor from source for Windows?

Or if we get a fix merged into tor, can you install the Windows
"Tor Expert Bundle" ?

It's built along with the Tor Browser alphas, so it might take a
little while for each new version.

T

--
teor
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