diff --git a/driver-bitforce.c b/driver-bitforce.c index 9b76fd40..61d7c0c9 100644 --- a/driver-bitforce.c +++ b/driver-bitforce.c @@ -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