From: Mike Snitzer <snitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Kent Overstreet <koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: make-bcache's bucket size and block size values are ignored
Date: Tue, 9 Apr 2013 10:07:36 -0400 [thread overview]
Message-ID: <20130409140735.GA3984@redhat.com> (raw)
Hey Kent,
No matter what I specify via make-bcache's -b and -w args they are
always 512k and 512b respectively, e.g.:
# make-bcache -B /dev/mapper/test-dev-174467 -C /dev/mapper/test-dev-24832 --cache_replacement_policy=fifo -b 2048k --writeback --discard
UUID: 3705b1d8-4b44-406c-abf2-594c0cb146be
Set UUID: a16dc554-c054-4a24-90fa-40f624e3a652
nbuckets: 8192
block_size: 1
bucket_size: 1024
nr_in_set: 1
nr_this_dev: 0
first_bucket: 1
UUID: 46a37bba-2582-4533-a95b-1eb29c71e53f
Set UUID: a16dc554-c054-4a24-90fa-40f624e3a652
nbuckets: 512
block_size: 1
bucket_size: 1024
nr_in_set: 1
nr_this_dev: 0
first_bucket: 1
# cat /sys/block/bcache3/bcache/cache/bucket_size
512k
I can take a look at the make-bcache source in a bit but figured I'd let
you know sooner rather than later.
Mike
next reply other threads:[~2013-04-09 14:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-09 14:07 Mike Snitzer [this message]
[not found] ` <20130409140735.GA3984-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2013-04-09 19:35 ` make-bcache's bucket size and block size values are ignored Kent Overstreet
[not found] ` <20130409193521.GJ15749-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2013-04-09 19:54 ` Mike Snitzer
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