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authorKaushik BV <kbudiger@redhat.com>2012-01-30 19:17:12 +0530
committerVijay Bellur <vijay@gluster.com>2012-02-03 09:23:37 -0800
commit5ebc522717ef891c138307d02dcbc0bc1e9017f8 (patch)
tree642c3baa4e4fc7abf1b64d978f442a34ac3c46f6
parent9636f5b16c1847bc94d42ca6ac948c680bd55f2e (diff)
read-ahead: add performance.read-ahead--page-count option to 'volume set' framework
Change-Id: I727be1ae2e3da1816afa52fc9555269aa07c39c1 BUG: 783379 Signed-off-by: Kaushik BV <kbudiger@redhat.com> Reviewed-on: http://review.gluster.com/2700 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Amar Tumballi <amar@gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volgen.c2
-rw-r--r--xlators/performance/read-ahead/src/read-ahead.c67
2 files changed, 27 insertions, 42 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c
index f83a052ed..798ff0565 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volgen.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c
@@ -154,6 +154,8 @@ static struct volopt_map_entry glusterd_volopt_map[] = {
{"performance.write-behind-window-size", "performance/write-behind", "cache-size", NULL, DOC},
+ {"performance.read-ahead-page-count", "performance/read-ahead", "page-count", NULL, DOC},
+
{"network.frame-timeout", "protocol/client", NULL, NULL, NO_DOC, 0 },
{"network.ping-timeout", "protocol/client", NULL, NULL, NO_DOC, 0 },
{"network.inode-lru-limit", "protocol/server", NULL, NULL, NO_DOC, 0 },
diff --git a/xlators/performance/read-ahead/src/read-ahead.c b/xlators/performance/read-ahead/src/read-ahead.c
index 928d8b7bd..b77715490 100644
--- a/xlators/performance/read-ahead/src/read-ahead.c
+++ b/xlators/performance/read-ahead/src/read-ahead.c
@@ -1009,11 +1009,28 @@ out:
}
int
+reconfigure (xlator_t *this, dict_t *options)
+{
+ ra_conf_t *conf = NULL;
+ int ret = -1;
+
+ GF_VALIDATE_OR_GOTO ("read-ahead", this, out);
+ GF_VALIDATE_OR_GOTO ("read-ahead", this->private, out);
+
+ conf = this->private;
+
+ GF_OPTION_RECONF ("page-count", conf->page_count, options, uint32, out);
+
+ ret = 0;
+ out:
+ return ret;
+}
+
+int
init (xlator_t *this)
{
ra_conf_t *conf = NULL;
dict_t *options = NULL;
- char *page_count_string = NULL;
int32_t ret = -1;
GF_VALIDATE_OR_GOTO ("read-ahead", this, out);
@@ -1037,47 +1054,10 @@ init (xlator_t *this)
}
conf->page_size = this->ctx->page_size;
- conf->page_count = 4;
-
- if (dict_get (options, "page-count")) {
- page_count_string = data_to_str (dict_get (options,
- "page-count"));
- }
-
- if (page_count_string) {
- if (gf_string2uint_base10 (page_count_string, &conf->page_count)
- != 0) {
- gf_log ("read-ahead", GF_LOG_ERROR,
- "invalid number format \"%s\" of \"option "
- "page-count\"",
- page_count_string);
- goto out;
- }
-
- gf_log (this->name, GF_LOG_WARNING,
- "Using conf->page_count = %u", conf->page_count);
- }
- if (dict_get (options, "force-atime-update")) {
- char *force_atime_update_str = NULL;
+ GF_OPTION_INIT ("page-count", conf->page_count, uint32, out);
- force_atime_update_str
- = data_to_str (dict_get (options,
- "force-atime-update"));
-
- if (gf_string2boolean (force_atime_update_str,
- &conf->force_atime_update) == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "'force-atime-update' takes only boolean "
- "options");
- goto out;
- }
-
- if (conf->force_atime_update) {
- gf_log (this->name, GF_LOG_WARNING, "Forcing atime "
- "updates on cache hit");
- }
- }
+ GF_OPTION_INIT ("force-atime-update", conf->force_atime_update, bool, out);
conf->files.next = &conf->files;
conf->files.prev = &conf->files;
@@ -1141,12 +1121,15 @@ struct xlator_dumpops dumpops = {
struct volume_options options[] = {
{ .key = {"force-atime-update"},
- .type = GF_OPTION_TYPE_BOOL
+ .type = GF_OPTION_TYPE_BOOL,
+ .default_value = "false"
},
{ .key = {"page-count"},
.type = GF_OPTION_TYPE_INT,
.min = 1,
- .max = 16
+ .max = 16,
+ .default_value = "4",
+ .description = "Number of pages that will be pre-fetched"
},
{ .key = {NULL} },
};