diff options
Diffstat (limited to 'xlators/performance/io-threads/src/io-threads.h')
| -rw-r--r-- | xlators/performance/io-threads/src/io-threads.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/xlators/performance/io-threads/src/io-threads.h b/xlators/performance/io-threads/src/io-threads.h index 412b3cc7638..a613884da45 100644 --- a/xlators/performance/io-threads/src/io-threads.h +++ b/xlators/performance/io-threads/src/io-threads.h @@ -60,6 +60,11 @@ 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_ordered_scaling_on(conf) ((conf)->o_scaling == IOT_SCALING_ON) +#define iot_unordered_scaling_on(conf) ((conf)->u_scaling == IOT_SCALING_ON) + struct iot_worker { struct list_head rqlist; /* List of requests assigned to me. */ struct iot_conf *conf; @@ -98,7 +103,12 @@ 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 + thread scaling on ordered threads. + If scaling is off, io-threads maintains + at least min_o_threads number of threads + and never lets any thread exit. + */ struct iot_worker **oworkers; /* Ordered thread pool. */ @@ -114,6 +124,13 @@ 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 + thread scaling on unordered threads. + If scaling is off, io-threads maintains + at least min_u_threads number of threads + and never lets any thread exit. + */ + }; typedef struct iot_conf iot_conf_t; |