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
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=20121001203706.GB26488@google.com \
--to=koverstreet-hpiqsd4aklfqt0dzr+alfa@public.gmane.org \
--cc=bwalker-WlSugiYO8JFBDgjK7y7TUQ@public.gmane.org \
--cc=linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.