diff options
| author | Shehjar Tikoo <shehjart@zresearch.com> | 2009-04-01 14:01:05 -0700 |
|---|---|---|
| committer | Anand V. Avati <avati@amp.gluster.com> | 2009-04-02 19:19:29 +0530 |
| commit | 9f2ef60274dae8b302d691ba8d266cd76dcd7c4b (patch) | |
| tree | 18eda89f71258fa4b631faa9e38dd09d8c2e04ee /xlators/performance/io-threads/src/io-threads.h | |
| parent | b1bbd77f16a13f8109d1e2e1b4ed869db1e86645 (diff) | |
io-threads: Support autoscaling volfile options
This commit finally makes the autoscaling feature visible to the user.
Know that we're now using two separate thread-pools, one for data
requests, called ordered thread-pool in io-threads, and the other
for meta-data requests, called un-ordered thread-pool.
We do not expose this information to the user to keep io-threads
simple. Consequently, when the user specifies a min-threads and
max-threads value, the number of threads assigned to each pool
is equal, i.e. both pools start with their min threads set to half of
the option "min-threads" and both scale up their threads at most up to
half of option "max-threads".
Volfile options will be added to the wiki and user-guide.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
Diffstat (limited to 'xlators/performance/io-threads/src/io-threads.h')
| -rw-r--r-- | xlators/performance/io-threads/src/io-threads.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/xlators/performance/io-threads/src/io-threads.h b/xlators/performance/io-threads/src/io-threads.h index a613884da45..3bc37a67d43 100644 --- a/xlators/performance/io-threads/src/io-threads.h +++ b/xlators/performance/io-threads/src/io-threads.h @@ -60,8 +60,8 @@ struct iot_request { #define IOT_MIN_THREADS 32 #define IOT_MAX_THREADS 512 -#define IOT_SCALING_OFF 1 -#define IOT_SCALING_ON 2 +#define IOT_SCALING_OFF _gf_false +#define IOT_SCALING_ON _gf_true #define iot_ordered_scaling_on(conf) ((conf)->o_scaling == IOT_SCALING_ON) #define iot_unordered_scaling_on(conf) ((conf)->u_scaling == IOT_SCALING_ON) @@ -103,7 +103,7 @@ struct iot_conf { int o_idle_time; /* in Secs. The idle time after which an ordered thread exits. */ - int o_scaling; /* Set to IOT_SCALING_OFF if user does not want + gf_boolean_t o_scaling; /* Set to IOT_SCALING_OFF if user does not want thread scaling on ordered threads. If scaling is off, io-threads maintains at least min_o_threads number of threads @@ -124,7 +124,7 @@ struct iot_conf { request for this amount of secs, it should try to die. */ - int u_scaling; /* Set to IOT_SCALING_OFF if user does not want + gf_boolean_t u_scaling; /* Set to IOT_SCALING_OFF if user does not want thread scaling on unordered threads. If scaling is off, io-threads maintains at least min_u_threads number of threads |