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Date:      Tue, 18 Jun 2019 00:17:30 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 238675] POSIX timer (timer_create) limit is too low (32)
Message-ID:  <bug-238675-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D238675

            Bug ID: 238675
           Summary: POSIX timer (timer_create) limit is too low (32)
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: greg@unrelenting.technology

epoll-shim https://github.com/jiixyj/epoll-shim implements the Linux timerfd
API via threads and POSIX timers.

libwayland-server allocates a timerfd per client.

sys/timers.h defines TIMER_MAX as 32.

As a result.. you can only run 32 Wayland clients! :D And I've started hitt=
ing
this limit in practice (especially with many WebKit processes).

Looks like on Linux, the limit of timers is RLIMIT_SIGPENDING which is 1638=
2 by
default:
https://stackoverflow.com/questions/11903920/boost-deadline-timer-max-numbe=
r-of-timers-in-linux

Our limit should be raised.

--=20
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