From: David Howells <dhowells@redhat.com>
To: Chris Mason <chris.mason@oracle.com>
Cc: Trond.Myklebust@netapp.com, nfsv4@linux-nfs.org,
linux-kernel@vger.kernel.org, dhowells@redhat.com,
linux-fsdevel@vger.kernel.org,
linux-security-module@vger.kernel.org, selinux@tycho.nsa.gov,
casey@schaufler-ca.com, Daniel Phillips <phillips@phunq.net>
Subject: Re: [PATCH 00/37] Permit filesystem local caching
Date: Fri, 22 Feb 2008 16:47:27 +0000 [thread overview]
Message-ID: <25210.1203698847@redhat.com> (raw)
In-Reply-To: <200802220852.26584.chris.mason@oracle.com>
Chris Mason <chris.mason@oracle.com> wrote:
> Thanks for trying this, of course I'll ask you to try again with the latest
> v0.13 code, it has a number of optimizations especially for CPU usage.
Here you go. The numbers are very similar.
David
=================================
FEW BIG FILES TEST ON BTRFS v0.13
=================================
Completely cold caches:
[root@andromeda ~]# time cat /warthog/bigfile >/dev/null
real 0m2.202s
user 0m0.000s
sys 0m1.716s
[root@andromeda ~]# time cat /warthog/biggerfile >/dev/null
real 0m4.212s
user 0m0.000s
sys 0m0.896s
Warm BTRFS pagecache, cold NFS pagecache:
[root@andromeda ~]# time cat /warthog/bigfile >/dev/null
real 0m0.197s
user 0m0.000s
sys 0m0.192s
[root@andromeda ~]# time cat /warthog/biggerfile >/dev/null
real 0m0.376s
user 0m0.000s
sys 0m0.372s
Warm on-disk cache, cold pagecaches:
[root@andromeda ~]# time cat /warthog/bigfile >/dev/null
real 0m1.543s
user 0m0.004s
sys 0m1.448s
[root@andromeda ~]# time cat /warthog/biggerfile >/dev/null
real 0m3.111s
user 0m0.000s
sys 0m2.856s
==================================================
MANY SMALL/MEDIUM FILE READING TEST ON BTRFS v0.13
==================================================
Completely cold caches:
[root@andromeda ~]# time tar cf - /warthog/aaa >/dev/zero
real 0m31.575s
user 0m0.176s
sys 0m6.316s
Warm BTRFS pagecache, cold NFS pagecache:
[root@andromeda ~]# time tar cf - /warthog/aaa >/dev/zero
real 0m16.081s
user 0m0.164s
sys 0m5.528s
Warm on-disk cache, cold pagecaches:
[root@andromeda ~]# time tar cf - /warthog/aaa >/dev/zero
real 2m15.245s
user 0m0.064s
sys 0m2.808s
next prev parent reply other threads:[~2008-02-22 16:47 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-20 16:05 [PATCH 00/37] Permit filesystem local caching David Howells
2008-02-20 16:06 ` [PATCH 01/37] KEYS: Increase the payload size when instantiating a key David Howells
2008-02-20 16:06 ` [PATCH 02/37] KEYS: Check starting keyring as part of search David Howells
2008-02-20 16:06 ` [PATCH 03/37] KEYS: Allow the callout data to be passed as a blob rather than a string David Howells
2008-02-20 16:06 ` [PATCH 04/37] KEYS: Add keyctl function to get a security label David Howells
2008-02-20 16:06 ` [PATCH 05/37] Security: Change current->fs[ug]id to current_fs[ug]id() David Howells
2008-02-20 16:06 ` [PATCH 06/37] Security: Separate task security context from task_struct David Howells
2008-02-22 4:47 ` Casey Schaufler
2008-02-20 16:06 ` [PATCH 07/37] Security: De-embed task security record from task and use refcounting David Howells
2008-02-22 4:57 ` Casey Schaufler
2008-02-20 16:06 ` [PATCH 08/37] Security: Add a kernel_service object class to SELinux David Howells
2008-02-20 16:06 ` [PATCH 09/37] Security: Allow kernel services to override LSM settings for task actions David Howells
2008-02-22 5:06 ` Casey Schaufler
2008-02-22 13:06 ` David Howells
2008-02-20 16:06 ` [PATCH 10/37] Security: Make NFSD work with detached security David Howells
2008-02-20 16:06 ` [PATCH 11/37] FS-Cache: Release page->private after failed readahead David Howells
2008-02-20 16:07 ` [PATCH 12/37] FS-Cache: Recruit a couple of page flags for cache management David Howells
2008-02-20 16:07 ` [PATCH 13/37] FS-Cache: Provide an add_wait_queue_tail() function David Howells
2008-02-20 16:07 ` [PATCH 14/37] FS-Cache: Generic filesystem caching facility David Howells
2008-02-20 16:07 ` [PATCH 15/37] CacheFiles: Add missing copy_page export for ia64 David Howells
2008-02-20 16:07 ` [PATCH 16/37] CacheFiles: Be consistent about the use of mapping vs file->f_mapping in Ext3 David Howells
2008-02-20 16:07 ` [PATCH 17/37] CacheFiles: Add a hook to write a single page of data to an inode David Howells
2008-02-20 16:07 ` [PATCH 18/37] CacheFiles: Permit the page lock state to be monitored David Howells
2008-02-20 16:07 ` [PATCH 19/37] CacheFiles: Export things for CacheFiles David Howells
2008-02-20 16:07 ` [PATCH 20/37] CacheFiles: A cache that backs onto a mounted filesystem David Howells
2008-02-20 16:07 ` [PATCH 21/37] NFS: Add comment banners to some NFS functions David Howells
2008-02-20 16:07 ` [PATCH 22/37] NFS: Add FS-Cache option bit and debug bit David Howells
2008-02-20 16:08 ` [PATCH 23/37] NFS: Permit local filesystem caching to be enabled for NFS David Howells
2008-02-20 16:08 ` [PATCH 24/37] NFS: Register NFS for caching and retrieve the top-level index David Howells
2008-02-20 16:08 ` [PATCH 25/37] NFS: Define and create server-level objects David Howells
2008-02-20 16:08 ` [PATCH 26/37] NFS: Define and create superblock-level objects David Howells
2008-02-20 16:08 ` [PATCH 27/37] NFS: Define and create inode-level cache objects David Howells
2008-02-20 16:08 ` [PATCH 28/37] NFS: Use local disk inode cache David Howells
2008-02-20 16:08 ` [PATCH 29/37] NFS: Invalidate FsCache page flags when cache removed David Howells
2008-02-20 16:08 ` [PATCH 30/37] NFS: Add some new I/O event counters for FS-Cache events David Howells
2008-02-20 16:08 ` [PATCH 31/37] NFS: FS-Cache page management David Howells
2008-02-20 16:08 ` [PATCH 32/37] NFS: Add read context retention for FS-Cache to call back with David Howells
2008-02-20 16:08 ` [PATCH 33/37] NFS: nfs_readpage_async() needs to be accessible as a fallback for local caching David Howells
2008-02-20 16:09 ` [PATCH 34/37] NFS: Read pages from FS-Cache into an NFS inode David Howells
2008-02-20 16:09 ` [PATCH 35/37] NFS: Store pages from an NFS inode into a local cache David Howells
2008-02-20 16:09 ` [PATCH 36/37] NFS: Display local caching state David Howells
2008-02-20 16:09 ` [PATCH 37/37] NFS: Add mount options to enable local caching on NFS David Howells
2008-02-20 19:58 ` [PATCH 00/37] Permit filesystem local caching Serge E. Hallyn
2008-02-20 20:11 ` David Howells
2008-02-21 3:07 ` Daniel Phillips
2008-02-21 12:31 ` David Howells
2008-02-21 14:55 ` David Howells
2008-02-21 15:17 ` Kevin Coffman
2008-02-21 22:44 ` Daniel Phillips
2008-02-21 22:52 ` Muntz, Daniel
2008-02-22 0:07 ` David Howells
2008-02-22 0:57 ` Daniel Phillips
2008-02-22 12:48 ` David Howells
2008-02-22 22:25 ` Daniel Phillips
2008-02-23 1:22 ` David Howells
2008-02-21 23:33 ` David Howells
2008-02-22 13:52 ` Chris Mason
2008-02-22 16:12 ` David Howells
2008-02-22 16:47 ` David Howells [this message]
2008-02-25 23:19 ` David Howells
2008-02-26 0:43 ` Daniel Phillips
2008-02-26 2:00 ` David Howells
2008-02-26 10:26 ` Daniel Phillips
2008-02-26 14:33 ` David Howells
2008-02-26 19:43 ` Daniel Phillips
2008-02-26 21:09 ` David Howells
2008-02-22 16:14 ` David Howells
-- strict thread matches above, loose matches on Subject: below --
2008-02-22 16:01 Rick Macklem
2008-02-08 16:51 David Howells
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