From: Kent Overstreet <koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
To: Brad Walker <bwalker-WlSugiYO8JFBDgjK7y7TUQ@public.gmane.org>
Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: problem w/ read caching..
Date: Mon, 1 Oct 2012 13:37:06 -0700 [thread overview]
Message-ID: <20121001203706.GB26488@google.com> (raw)
In-Reply-To: <loom.20121001T220412-225-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
On Mon, Oct 01, 2012 at 08:05:14PM +0000, Brad Walker wrote:
> Kent Overstreet <koverstreet@...> writes:
>
> >
> > What about cache_bypass_hits, cache_bypass_misses?
> >
>
> cache_bypass_hits = 0
> cache_bypass_misses = 0
I should've just asked you for all the stats - what about
cache_miss_collision?
Also, internal/cache_read_races?
Perhaps stuff is getting evicted from the cache for some reason... How
big is the SSD?
Is cache_replacement_policy lru? (the default - cache_replacement_policy
is in cache0/)
What's cache0/priority_stats say?
next prev parent reply other threads:[~2012-10-01 20:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-12 20:01 problem w/ read caching Brad Walker
[not found] ` <CAPKZHbV3n7O+VRVNS-C2oDVSpO_VdirMDUOuwwWKaA5ZOUEG_g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-09-13 18:43 ` Kent Overstreet
2012-09-27 23:28 ` Brad Walker
[not found] ` <loom.20120928T010314-562-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2012-09-28 18:59 ` Kent Overstreet
2012-10-01 19:18 ` Brad Walker
[not found] ` <loom.20121001T211315-779-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2012-10-01 19:38 ` Kent Overstreet
2012-10-01 20:05 ` Brad Walker
[not found] ` <loom.20121001T220412-225-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2012-10-01 20:37 ` Kent Overstreet [this message]
2012-10-01 20:56 ` Brad Walker
[not found] ` <loom.20121001T223817-249-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2012-10-01 21:14 ` Kent Overstreet
2012-10-01 22:26 ` Brad Walker
[not found] ` <loom.20121002T001556-394-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2012-10-01 23:00 ` Kent Overstreet
[not found] ` <20121001230023.GG26488-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-10-03 4:44 ` Kent Overstreet
2012-10-08 16:39 ` Brad Walker
[not found] <50651c68.a8e1440a.1165.67c8SMTPIN_ADDED@mx.google.com>
[not found] ` <50651c68.a8e1440a.1165.67c8SMTPIN_ADDED-ATjtLOhZ0NVl57MIdRCFDg@public.gmane.org>
2012-09-28 16:31 ` Brad Walker
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