glusterfs.git/xlators/performance, branch release-2.0

fix memory leak in mkdir, mknod, symlink by freeing local

2010-05-13T19:12:23+00:00

Signed-off-by: Raghavendra Bhat 
Signed-off-by: Anand V. Avati 

BUG: 920 (memory leak in stat-prefetch)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=920

performance/read-ahead: don't set ra_file in fd->ctx unless all memebers of ra_file is initialized

2010-05-04T10:32:10+00:00

- If ptr to ra_file is set in fd->ctx even before initializing all its
    members, A race condition may occur b/w a thread executing ra_fstat,
    ra_readv etc (where all files open on the same inode are flushed) and
    the thread doing initialization of ra_file (in ra_open_cbk or
    ra_create_cbk). Because of this race-condition, flush_region might be
    called on an uninitialized ra_file, thereby causing crash.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 868 (crash in ra_fstat)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=868

fix memory leak in stat-prefetch.

2010-05-04T06:40:20+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 878 (Memory leak in stat-prefetch)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=878

performance/quick-read: don't try to validate again if qr_readv is called just after validation.

2010-04-27T09:38:15+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 852 (QR cache-timeout 0 causes high CPU usage and app hangs)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=852

performance/quick-read: read directly from backend for fds opened with O_DIRECT flag.

2010-04-08T10:08:50+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 723 (enhancements to quick read)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=723

performance/quick-read: make use of nanosecond resolution of mtime to decide whether to keep cache or not.

2010-04-08T10:08:46+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 801 (Direct io-mode support and related changes in caching translators.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=801

performance/io-cache: make use of nano second resolution of mtime during cache validation.

2010-04-08T10:08:42+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 801 (Direct io-mode support and related changes in caching translators.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=801

performance/write-behind: Resume all the consecutive non-write operations in the request queue in a single go.

2010-03-29T11:29:52+00:00

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 740 (read-ahead does not work to its full potential when loaded on top of write-behind)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=740

performance/write-behind: fix data corruption while aggregating the adjacent contiguous iobufs into a single iobuf

2010-02-23T07:27:06+00:00

- while aggregating, we should make sure that the destination has enough
   memory. __wb_collapse_write_bufs assumed that destination vector's iov_base
   was aligned to the start of an iobuf and hence memory of page_size is
   available for aggregation. This assumption is not always true, like in the
   configuration consisting afr->write->io-cache (afr is on top). Refer to the
   bug url for more details.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 542 (write-behind crashes)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=542

performance/write-behind: refactor __wb_collapse_write_bufs

2010-02-23T07:27:02+00:00

- refactor done to remove duplicated code.

Signed-off-by: Raghavendra G 
Signed-off-by: Anand V. Avati 

BUG: 542 (write-behind crashes)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=542