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authorXavier Hernandez <xhernandez@datalab.es>2014-07-14 17:34:04 +0200
committerVijay Bellur <vbellur@redhat.com>2014-09-15 23:12:16 -0700
commitd97863562bb0d2f685df3d2e3aa4bef1299c8307 (patch)
treeb8d9455cdface5425e2452e98751ac75dac358e4 /xlators/cluster/ec/src/ec-helpers.c
parent2be54585002cd1c9d02928b89a02047b58dd6aed (diff)
ec: Optimize read/write performance
This patch significantly improves performance of read/write operations on a dispersed volume by reusing previous inodelk/ entrylk operations on the same inode/entry. This reduces the latency of each individual operation considerably. Inode version and size are also updated when needed instead of on each request. This gives an additional boost. Change-Id: I4b98d5508c86b53032e16e295f72a3f83fd8fcac BUG: 1122586 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/8369 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Diffstat (limited to 'xlators/cluster/ec/src/ec-helpers.c')
-rw-r--r--xlators/cluster/ec/src/ec-helpers.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/xlators/cluster/ec/src/ec-helpers.c b/xlators/cluster/ec/src/ec-helpers.c
index 6eb836a1c62..22889337cbc 100644
--- a/xlators/cluster/ec/src/ec-helpers.c
+++ b/xlators/cluster/ec/src/ec-helpers.c
@@ -503,6 +503,9 @@ ec_inode_t * __ec_inode_get(inode_t * inode, xlator_t * xl)
return NULL;
}
+
+ INIT_LIST_HEAD(&ctx->entry_locks);
+ INIT_LIST_HEAD(&ctx->inode_locks);
}
}
else