From: Steve Grubb <sgrubb@redhat.com>
To: linux-audit@redhat.com
Subject: Re: Minimizing CPU Utilization of audisp Plugin
Date: Fri, 05 Oct 2018 10:10:22 -0400 [thread overview]
Message-ID: <10916994.zGLAod9bSu@x2> (raw)
In-Reply-To: <CACva_gEoSDtR62oC5Gc53KnqC-VT5teZ6ifnaS=PZciGyWgdUg@mail.gmail.com>
Hello,
On Friday, October 5, 2018 9:11:28 AM EDT Osama Elnaggar wrote:
> I'm currently working on a Python audisp plugin. My main routine looks
> like this:
>
> if __name__ == '__main__':
>
> try:
> ...
>
> aup = auparse.AuParser(auparse.AUSOURCE_FEED)
> aup.add_callback(process_event, None)
>
> while True:
> for _ in fileinput.input():
> aup.feed(_)
> except:
> ...
>
> While profiling my plugin, I noticed that 95% + of the CPU time used by my
> plugin is used in fileinput.input(), waiting/reading from input
>
> Is there any way to lower this or preferred way to poll/read?
I don't do much if any python programming. But in C, all examples include a
select in the event processing loop. Python has a select module. There are
examples on the internet about how to use it. One is here:
https://www.programcreek.com/python/example/258/select.select
There are other examples.
-Steve
prev parent reply other threads:[~2018-10-05 14:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-05 13:11 Minimizing CPU Utilization of audisp Plugin Osama Elnaggar
2018-10-05 14:10 ` Steve Grubb [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=10916994.zGLAod9bSu@x2 \
--to=sgrubb@redhat.com \
--cc=linux-audit@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox