user/dev discussion of public-inbox itself
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From: Eric Wong <>
To: Jan Kiszka <>
Subject: Re: High polling frequency of public-inbox-watch
Date: Sun, 11 Aug 2019 16:51:36 +0000
Message-ID: <20190811165136.py6bfldsg6tz4wak@dcvr> (raw)
In-Reply-To: <>

Jan Kiszka <> wrote:
> Hi,
> I'm running public-inbox for some months very successfully on my server. Great work!

Good to know :>

> On thing though: I realized that the public-inbox-watch service is scanning the
> configured maildirs with a sleep delay of just 2 seconds, and that causes a CPU
> load of 20-30% on my box. Can this be configured to a more moderate rate? I
> would have patched this already, but I'm not seeing in the code where these 2
> seconds may come from.

I guess it's from Filesys::Notify::Simple.  Which OS are you using?

It should be able to use inotify / kqueue depending on whether
you're on Linux or FreeBSD (I haven't tested other BSDs).  It
uses Linux::Inotify2 on Linux which AFAIK all deb-based distros
will pull in, and Filesys::Notify::KQueue on KQueue-supported

  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-11 16:43 Jan Kiszka
2019-08-11 16:51 ` Eric Wong [this message]
2019-08-11 17:01   ` Jan Kiszka
2019-08-11 17:33     ` Eric Wong
2019-10-15  3:59       ` [PATCH] INSTALL: recommend inotify|kqueue modules for -watch Eric Wong

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