diff options
| author | Poornima G <pgurusid@redhat.com> | 2017-04-12 15:24:14 +0530 |
|---|---|---|
| committer | Pranith Kumar Karampuri <pkarampu@redhat.com> | 2017-04-20 00:18:52 -0400 |
| commit | 561766e45a323be3d5c521fdb47f68d71cea776e (patch) | |
| tree | 4f2505ff34a5d64caeb7fc1c1693f729a84c956a /xlators/performance/nl-cache/src/nl-cache-messages.h | |
| parent | 2aeca0ef02733ebd9b7979e4c27585f3ebff53d7 (diff) | |
Implement negative lookup cache
Before creating any file negative lookups(1 in Fuse, 4 in SMB etc.)
are sent to verify if the file already exists. By serving these
lookups from the cache when possible, increases the create
performance by multiple folds in SMB access and some percentage
in Fuse/NFS access.
Feature page: https://review.gluster.org/#/c/16436
Updates #82
Change-Id: Ib1c0e7ac7a386f943d84f6398c27f9a03665b2a4
BUG: 1442569
Signed-off-by: Poornima G <pgurusid@redhat.com>
Reviewed-on: https://review.gluster.org/16952
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Diffstat (limited to 'xlators/performance/nl-cache/src/nl-cache-messages.h')
| -rw-r--r-- | xlators/performance/nl-cache/src/nl-cache-messages.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/xlators/performance/nl-cache/src/nl-cache-messages.h b/xlators/performance/nl-cache/src/nl-cache-messages.h new file mode 100644 index 00000000000..2e3b89443c3 --- /dev/null +++ b/xlators/performance/nl-cache/src/nl-cache-messages.h @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2016 Red Hat, Inc. <http://www.redhat.com> + * This file is part of GlusterFS. + * + * This file is licensed to you under your choice of the GNU Lesser + * General Public License, version 3 or any later version (LGPLv3 or + * later), or the GNU General Public License, version 2 (GPLv2), in all + * cases as published by the Free Software Foundation. + */ + + +#ifndef __NL_CACHE_MESSAGES_H__ +#define __NL_CACHE_MESSAGES_H__ + + +#define GLFS_COMP_BASE_NLC GLFS_MSGID_COMP_NLC +#define GLFS_NUM_MESSAGES 4 +#define GLFS_MSGID_END (GLFS_COMP_BASE_NLC + GLFS_NUM_MESSAGES + 1) + +#define glfs_msg_start_x GLFS_COMP_BASE_NLC, "Invalid: Start of messages" + +/*! + * @messageid 110001 + * @diagnosis Out of Memory + * @recommendedaction None + */ +#define NLC_MSG_NO_MEMORY (GLFS_COMP_BASE_NLC + 1) +#define NLC_MSG_EINVAL (GLFS_COMP_BASE_NLC + 2) +#define NLC_MSG_NO_TIMER_WHEEL (GLFS_COMP_BASE_NLC + 3) +#define NLC_MSG_DICT_FAILURE (GLFS_COMP_BASE_NLC + 4) +#define glfs_msg_end_x GLFS_MSGID_END, "Invalid: End of messages" + + +#endif /* __NL_CACHE_MESSAGES_H__ */ |