From: Artem Bityutskiy <dedekind1@gmail.com>
To: Atlant Schmidt <aschmidt@dekaresearch.com>
Cc: "'linux-mtd@lists.infradead.org'" <linux-mtd@lists.infradead.org>
Subject: RE: Can major re-organization activities of the UBIfs be "deliberately provoked"?
Date: Fri, 22 Jul 2011 13:59:01 +0300 [thread overview]
Message-ID: <1311332345.20707.22.camel@sauron> (raw)
In-Reply-To: <0A40042D85E7C84DB443060EC44B3FD32A7208F982@dekaexchange07.deka.local>
On Fri, 2011-07-22 at 06:50 -0400, Atlant Schmidt wrote:
> Artem:
>
> Thanks! We've already tuned the Linux page cache
> to be quite a lot less bursty (for example, by
> decreasing the dirty_expire_centisecs from 3000
> (30 seconds) to 500 (5 seconds); this substantially
> removed the burstiness associated with the VFS
> (and the associated pagecache flushing tasks).
>
> Now, though, we assume we're up against garbage
> collection in the UBIfs so we wonder if there's
> a way to make *THAT* operation either:
>
> 1. Less bursty (perhaps by making it run more
> often but have less work to do at each run),
> or
>
> 2. Externally schedulable so we could cause it
> to occur when we have idle CPU time and its
> running won't affect the realtime behavior
> of the rest of our system.
>
> Can either of those things be done?
Yes, I think both can be done. Someone just needs to do this :-)
--
Best Regards,
Artem Bityutskiy
prev parent reply other threads:[~2011-07-22 10:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-21 13:33 Can major re-organization activities of the UBIfs be "deliberately provoked"? Atlant Schmidt
2011-07-22 8:34 ` Artem Bityutskiy
2011-07-22 10:50 ` Atlant Schmidt
2011-07-22 10:59 ` Artem Bityutskiy [this message]
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