CPU consumption way higher when multiple client of the same account is connected #2006

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opened 2026-07-16 19:51:24 +00:00 by vgdev · 2 comments

vgdev commented

2026-07-16 19:51:24 +00:00

Hello,

I'm using the debian repository "https://forgejo.ellis.link/api/packages/continuwuation/debian" latest version "26.6.2". When a user account (me in this case) has two clients connected from two computers, the CPU of my server rises a lot, the continuwuity process passes from around 0%/1% cpu usage to around 20% without stopping.

In order to try to understand the issue, I've done a perf stat and a strace, but I stopped the debugging process here, hopping than someone with better knowledge of the source code could route cause the issue.

I tried to disable the presence in the configuration file, but it didn't change the issue.

The commands I used for perf and strace are the following:

   perf stat -p $(pidof conduwuit) -- sleep 30
   strace -f -tt -T -p $(pidof conduwuit) -o /tmp/strace.log

There is two parts in the perf, the first one was with a single client connected, the second one was with 2 computers connected (the second "computer" being my phone under phosh). I tried with element and fluffychat but it does not make a difference.

Hello, I'm using the debian repository "https://forgejo.ellis.link/api/packages/continuwuation/debian" latest version "26.6.2". When a user account (me in this case) has two clients connected from two computers, the CPU of my server rises a lot, the continuwuity process passes from around 0%/1% cpu usage to around 20% without stopping. In order to try to understand the issue, I've done a perf stat and a strace, but I stopped the debugging process here, hopping than someone with better knowledge of the source code could route cause the issue. I tried to disable the presence in the configuration file, but it didn't change the issue. The commands I used for perf and strace are the following: perf stat -p $(pidof conduwuit) -- sleep 30 strace -f -tt -T -p $(pidof conduwuit) -o /tmp/strace.log There is two parts in the perf, the first one was with a single client connected, the second one was with 2 computers connected (the second "computer" being my phone under phosh). I tried with element and fluffychat but it does not make a difference.

strace.log

16 MiB

perf.log

1.8 KiB

eleboucher referenced this issue from a pull request that will close it,

2026-07-16 20:18:34 +00:00

fix(sync): Stop waking sync loops when removing to-device events #2007

Aranjedeath closed this issue

2026-07-16 21:55:57 +00:00

Aranjedeath commented

2026-07-16 21:57:13 +00:00

Owner

We just merged a fix for this, please let us know if it's resolved for you, or if some part of the issue still persists.

vgdev commented

2026-07-18 09:12:36 +00:00

Author

I tested the nightly build at https://forgejo.ellis.link/continuwuation/continuwuity/actions/runs/19664/jobs/0/attempt/1 and it fixes the issue, now the cpu stays near 0% even with multiple clients connected at the same time. Thank you !

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