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authorKaushal M <kaushal@gluster.com>2011-09-14 09:50:45 +0530
committerVijay Bellur <vijay@gluster.com>2011-09-29 09:39:50 -0700
commitce8a569e9f18cfff2f2befe259c2022d9b37538f (patch)
treea5afc3ceed7a36509dca452feab1566a1896afd0 /libglusterfs/src/common-utils.c
parentf3a6752cc455676d6e1f946b513636d991825da8 (diff)
performance/io-cache,quick-read: increase cache-size limit
Does the following: 1. Increases cache-size limit from 6GB to 32GB. 2. Prevents 'volume set'from failing when cache-size is set over the limit. Just issues a warning. 3. Performs check on cache-size by comparing with total system memory available in init () and reconfigure () methods. Change-Id: I7dd4d8c53051b89a293696abf1ee8dc237e39a20 BUG: 3495 Reviewed-on: http://review.gluster.com/409 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
Diffstat (limited to 'libglusterfs/src/common-utils.c')
-rw-r--r--libglusterfs/src/common-utils.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index b2e91608b7a..2d4415f506d 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -1896,3 +1896,34 @@ gf_path_strip_trailing_slashes (char *path)
return;
}
+
+uint64_t
+get_mem_size ()
+{
+ uint64_t memsize = -1;
+
+#ifdef __linux__
+ FILE *fp = NULL;
+ char line[1028] = {0,};
+
+ fp = fopen ("/proc/meminfo", "r");
+ if (!fp) {
+ gf_log ("common-utils", GF_LOG_DEBUG,
+ "Could not open /proc/meminfo");
+ return memsize;
+ }
+
+ while (fgets (line, sizeof (line), fp) != 0) {
+ if (strncmp (line, "MemTotal:", 9) == 0) {
+ sscanf (line, "%*s %"SCNu64" kB", &memsize);
+ memsize *= 1024; //convert to bytes
+ gf_log ("common-utils", GF_LOG_INFO,
+ "Total Mem: %"PRIu64, memsize);
+ break;
+ }
+ }
+#endif
+ // TODO: Methods for other platforms
+
+ return memsize;
+}