From: Alasdair G Kergon <agk@redhat.com>
To: Frank Mayhar <fmayhar@google.com>
Cc: linux-kernel@vger.kernel.org, dm-devel@redhat.com
Subject: Re: [dm-devel] [PATCH] dm: Make MIN_IOS, et al, tunable via sysctl.
Date: Sat, 17 Aug 2013 13:30:39 +0100 [thread overview]
Message-ID: <20130817123039.GR1762@agk-dp.fab.redhat.com> (raw)
In-Reply-To: <1376070533.26057.244.camel@bobble.lax.corp.google.com>
On Fri, Aug 16, 2013 at 03:55:21PM -0700, Frank Mayhar wrote:
> This patch fixes that by changing the hardcoded MIN_IOS (and certain
> other) #defines in dm-crypt, dm-io, dm-mpath, dm-snap and dm itself to
> sysctl-modifiable values. This lets us change the size of these pools
> on the fly, we can reduce the size of the pools and reduce memory
> pressure.
Did you consider using module_param_named()?
(E.g. dm_verity_prefetch_cluster in dm-verity.)
Alasdair
next parent reply other threads:[~2013-08-17 12:30 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1376070533.26057.244.camel@bobble.lax.corp.google.com>
2013-08-17 12:30 ` Alasdair G Kergon [this message]
2013-08-19 13:40 ` dm: Make MIN_IOS, et al, tunable via sysctl Mike Snitzer
2013-08-19 15:04 ` Frank Mayhar
2013-08-19 14:00 ` Mike Snitzer
2013-08-19 17:54 ` [dm-devel] " Frank Mayhar
2013-08-19 18:15 ` Mike Snitzer
2013-08-20 21:44 ` [dm-devel] " Mikulas Patocka
2013-08-20 21:52 ` Frank Mayhar
2013-08-20 21:41 ` Mikulas Patocka
2013-08-20 21:22 ` [dm-devel] [PATCH] " Mikulas Patocka
2013-08-20 21:28 ` Frank Mayhar
2013-08-20 21:47 ` Mikulas Patocka
2013-08-20 21:57 ` Frank Mayhar
2013-08-20 22:24 ` Mike Snitzer
2013-08-20 22:52 ` Mikulas Patocka
2013-08-20 23:14 ` Frank Mayhar
2013-08-22 17:26 ` Frank Mayhar
2013-08-26 14:28 ` Mikulas Patocka
2013-09-12 22:24 ` [PATCH 0/7] dm: allow mempool and bioset reserves to be tuned Mike Snitzer
2013-09-12 22:24 ` [PATCH 1/7] dm: lower bio-based mempool reservation Mike Snitzer
2013-09-12 22:40 ` Mikulas Patocka
2013-09-12 22:24 ` [PATCH 2/7] dm: add reserved_rq_based_ios module parameter Mike Snitzer
2013-09-12 22:45 ` Mikulas Patocka
2013-09-12 23:15 ` Mike Snitzer
2013-09-12 23:27 ` Mikulas Patocka
2013-09-12 23:32 ` Mike Snitzer
2013-09-12 22:24 ` [PATCH 3/7] dm: add reserved_bio_based_ios " Mike Snitzer
2013-09-12 22:47 ` Mikulas Patocka
2013-09-12 23:11 ` Mike Snitzer
2013-09-12 23:17 ` Mikulas Patocka
2013-09-18 15:17 ` Frank Mayhar
2013-09-12 22:24 ` [PATCH 4/7] dm io: use dm_get_reserved_bio_based_ios to size reserves Mike Snitzer
2013-09-12 22:48 ` Mikulas Patocka
2013-09-12 22:24 ` [PATCH 5/7] dm mpath: use dm_get_reserved_rq_based_ios to size mempool Mike Snitzer
2013-09-12 22:48 ` Mikulas Patocka
2013-09-12 22:24 ` [PATCH 6/7] dm: track the maximum number of bios in a cloned request Mike Snitzer
2013-09-12 22:55 ` Mikulas Patocka
2013-09-12 23:09 ` Mike Snitzer
2013-09-12 22:24 ` [PATCH 7/7] dm: optimize clone_rq() when track_peak_rq_based_ios is disabled Mike Snitzer
2013-09-12 23:00 ` Mikulas Patocka
2013-09-12 23:06 ` Mike Snitzer
2013-09-12 23:30 ` Mikulas Patocka
2013-09-12 23:53 ` Mike Snitzer
2013-09-13 4:46 ` Jun'ichi Nomura
2013-09-13 13:04 ` Mike Snitzer
2013-09-13 14:34 ` Mikulas Patocka
2013-09-13 18:59 ` [PATCH v2 0/3] dm: allow mempool and bioset reserves to be tuned Mike Snitzer
2013-09-13 18:59 ` [PATCH v2 1/3] dm: lower bio-based mempool reservation Mike Snitzer
2013-09-13 18:59 ` [PATCH v2 2/3] dm: add reserved_rq_based_ios module parameter Mike Snitzer
2013-09-13 18:59 ` [PATCH v2 3/3] dm: add reserved_bio_based_ios " Mike Snitzer
2013-09-13 19:22 ` [PATCH v2 0/3] dm: allow mempool and bioset reserves to be tuned Mike Snitzer
2013-09-13 20:30 ` Mike Snitzer
2013-09-13 21:08 ` [PATCH v3 " Mike Snitzer
2013-09-13 21:08 ` [PATCH v3 1/3] dm: lower bio-based mempool reservation Mike Snitzer
2013-09-13 21:08 ` [PATCH v3 2/3] dm: add reserved_rq_based_ios module parameter Mike Snitzer
2013-09-13 21:08 ` [PATCH v3 3/3] dm: add reserved_bio_based_ios " Mike Snitzer
2013-09-18 15:10 ` [PATCH v3 0/3] dm: allow mempool and bioset reserves to be tuned Frank Mayhar
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