glusterfs.git/xlators/performance/quick-read, branch v2.0.10rc2

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/quick-read: change the maximum value of max-file-size to 1000KB from 1MB.

2009-11-29T06:50:55+00:00

- protocol restricts the maximum buffer size that can be received over network
    to 1MB. Since the buffer holding reply of lookup should also contain the
    lookup header and other key/value pairs of xattr_reply dict, the maximum
    file size that can be fetched through dictionary cannot be equal to 1MB.

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

BUG: 419 (Issues with writing files of size >= 1MB)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=419

performance/quick-read: set return value to zero after successful init.

2009-11-13T10:13:57+00:00

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

BUG: 374 (quick read fails to initialize if no options are given)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=374

performance/quick-read: frame->local need not be set in qr_open_cbk.

2009-10-15T16:19:28+00:00

- local is used only by certain operations and hence it need not be set by
    all the operations invoking open.

Signed-off-by: Anand V. Avati 

BUG: 323 (fd leak with quick-read loaded in translator tree)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=323

performance/quick-read: flush should proceed with winding if fd-context is not found.

2009-10-15T16:19:24+00:00

- if the fd-context is not set, quick-read has no role to play other than
    just passing down the call to underlying translators.

Signed-off-by: Anand V. Avati 

BUG: 317 (Data corruption with write-behind loaded in translator tree.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=317

performance/quick-read: change the default option values in quick-read.

2009-10-10T05:48:18+00:00

Signed-off-by: Anand V. Avati 

BUG: 238 (Backport quick-read to 2.0 release)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=238

Changed occurrences of Z Research to Gluster.

2009-10-07T10:53:02+00:00

Signed-off-by: Anand V. Avati

performance/quick-read: refine logic of qr_readv.

2009-09-22T13:14:01+00:00

- An extra vector was being allocated when the number of bytes being read
    from cache were equal to the iobuf size.

Signed-off-by: Anand V. Avati 

BUG: 274 (Memory corruption in Apache running on booster)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=274

performance/quick-read: optimizations to lookup

2009-09-22T13:13:57+00:00

- qr_lookup not to send request for file-content if the cache is already
    present during revalidates.
  - flush the cache in qr_lookup_cbk if the cache is not in sync with the file.

Signed-off-by: Anand V. Avati 

BUG: 273 (Code review and optimize quick-read)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=273