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Code Issues Releases Wiki Activity

Added startup delay to worker threads.

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Prevents devices from making calls at the same time.
This commit is contained in:
Paul Sheppard 2012-06-13 17:26:37 -07:00
parent eff2d04df0
commit 2ec612e0b4
1 changed files with 15 additions and 0 deletions
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15
driver-bitforce.c
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@ -24,6 +24,7 @@
#define BITFORCE_TIMEOUT_MS 15000
#define BITFORCE_CHECK_INTERVAL_MS 10
#define WORK_CHECK_INTERVAL_MS 50
#define MAX_START_DELAY_US 100000
struct device_api bitforce_api;
@ -369,6 +370,19 @@ static bool bitforce_get_stats(struct cgpu_info *bitforce)
return bitforce_get_temp(bitforce);
}
static bool bitforce_thread_init(struct thr_info *thr)
{
unsigned int wait;
thr;
/* Pause each new thread a random time between 0-100ms
so the devices aren't making calls all at the same time. */
wait = (rand() * MAX_START_DELAY_US)/RAND_MAX;
applog(LOG_DEBUG, "BFL%i: Delaying start by %dms", bitforce->device_id, wait/1000);
usleep(wait);
return true;
}
struct device_api bitforce_api = {
.dname = "bitforce",
.name = "BFL",
@ -377,6 +391,7 @@ struct device_api bitforce_api = {
.get_statline_before = get_bitforce_statline_before,
.get_stats = bitforce_get_stats,
.thread_prepare = bitforce_thread_prepare,
.thread_init = bitforce_thread_init,
.scanhash = bitforce_scanhash,
.thread_shutdown = bitforce_shutdown,
.thread_enable = biforce_thread_enable