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authorPranith Kumar K <pranithk@gluster.com>2012-07-27 10:51:50 +0530
committerVijay Bellur <vbellur@redhat.com>2012-08-12 00:09:06 -0700
commitd40d5a3a32a515ff29c71467a0f701e91ae99718 (patch)
tree34fc1974ff16a29ef8f1732c3a885c2539195252 /xlators/mgmt/glusterd/src
parente427d39d629b8f89c25ac7f7a9d1eeca25b9579a (diff)
performance/io-threads: Provide option to turn off least-priority
RCA: In cases when self-heal is in progress, self-heal fops are starved because of least-priority. This affects other fops with conflicting inode, entry locks with self-heal. Fix: This patch provides configuring enable/disable of least-priority. Additional changes: Moved RCHECKSUM fop to low instead of least because it will still affect the performance of other fops if RCHECKSUM is in LEAST priority. Tests: Tested that the enabling/disabling of fops is working fine. Tested that RCHECKSUM fop priority is assigned LOW when least-priority is disabled. BUG: 843704 Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Change-Id: I892f99d6d0a3e0ae6c0a280f82e2203af0c346f6 Reviewed-on: http://review.gluster.com/3751 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volgen.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c
index 9bcf2cc7873..7cd97ed5de3 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volgen.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c
@@ -154,11 +154,12 @@ static struct volopt_map_entry glusterd_volopt_map[] = {
{"performance.cache-size", "performance/quick-read", NULL, NULL, NO_DOC, 0 },
{"performance.flush-behind", "performance/write-behind", "flush-behind", NULL, DOC, 0},
- {"performance.io-thread-count", "performance/io-threads", "thread-count", DOC, 0},
- {"performance.high-prio-threads", "performance/io-threads", NULL, DOC, 0},
- {"performance.normal-prio-threads", "performance/io-threads", NULL, DOC, 0},
- {"performance.low-prio-threads", "performance/io-threads", NULL, DOC, 0},
- {"performance.least-prio-threads", "performance/io-threads", NULL, DOC, 0},
+ {"performance.io-thread-count", "performance/io-threads", "thread-count", NULL, DOC, 0},
+ {"performance.high-prio-threads", "performance/io-threads", NULL, NULL, DOC, 0},
+ {"performance.normal-prio-threads", "performance/io-threads", NULL, NULL, DOC, 0},
+ {"performance.low-prio-threads", "performance/io-threads", NULL, NULL, DOC, 0},
+ {"performance.least-prio-threads", "performance/io-threads", NULL, NULL, DOC, 0},
+ {"performance.enable-least-priority", "performance/io-threads", NULL, NULL, DOC, 0},
{"performance.disk-usage-limit", "performance/quota", NULL, NULL, NO_DOC, 0},
{"performance.min-free-disk-limit", "performance/quota", NULL, NULL, NO_DOC, 0},
{"performance.write-behind-window-size", "performance/write-behind", "cache-size", NULL, DOC},