diff options
author | shishir gowda <sgowda@redhat.com> | 2012-08-23 18:34:09 +0530 |
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committer | Vijay Bellur <vbellur@redhat.com> | 2012-08-27 08:08:45 -0700 |
commit | 10617e6cbc73329f259b471327d88375352042b0 (patch) | |
tree | 8fd7b0a1a17763730f11208908263baa8897df6f /xlators/storage/posix/src/posix-aio.h | |
parent | d0c52c8064a4097d97180240b36c53bfe98cac22 (diff) |
storage/posix: implement native linux AIO support
Configurable via cli with "storage.linux-aio" settable option
Backported Avati's patch http://review.gluster.org/#change,3627
BUG: 837495
Change-Id: Ia7c26f5734d34d341debd422a5c59bba31eef844
Signed-off-by: shishir gowda <sgowda@redhat.com>
Reviewed-on: http://review.gluster.org/3849
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/storage/posix/src/posix-aio.h')
-rw-r--r-- | xlators/storage/posix/src/posix-aio.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/xlators/storage/posix/src/posix-aio.h b/xlators/storage/posix/src/posix-aio.h new file mode 100644 index 00000000000..545130a2889 --- /dev/null +++ b/xlators/storage/posix/src/posix-aio.h @@ -0,0 +1,49 @@ +/* + Copyright (c) 2006-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + GlusterFS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3 of the License, + or (at your option) any later version. + + GlusterFS is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see + <http://www.gnu.org/licenses/>. +*/ + +#ifndef _POSIX_AIO_H +#define _POSIX_AIO_H + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include "xlator.h" +#include "glusterfs.h" + +// Maximum number of concurrently submitted IO events. The heaviest load +// GlusterFS has been able to handle had 60-80 concurrent calls +#define POSIX_AIO_MAX_NR_EVENTS 256 + +// Maximum number of completed IO operations to reap per getevents syscall +#define POSIX_AIO_MAX_NR_GETEVENTS 16 + + +int posix_aio_on (xlator_t *this); +int posix_aio_off (xlator_t *this); + +int posix_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size, + off_t offset, uint32_t flags, dict_t *xdata); + +int posix_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iovec *vector, int32_t count, off_t offset, + uint32_t flags, struct iobref *iobref, dict_t *xdata); + +#endif /* !_POSIX_AIO_H */ |