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Don't keep rolling work right up to the expire= cut off. Use 2/3 of the time between the scantime and the expiry as cutoff for reusing work.

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This commit is contained in:
ckolivas 2012-06-26 16:01:06 +10:00
parent 6e80b63bb8
commit b198423d17
1 changed files with 16 additions and 12 deletions
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28
cgminer.c
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@ -2166,22 +2166,26 @@ static bool stale_work(struct work *work, bool share)
if (work->mandatory)
return false;
if (share)
work_expiry = opt_expiry;
else if (work->rolltime)
work_expiry = work->rolltime;
else
work_expiry = opt_scantime;
if (share) {
if (work->rolltime)
work_expiry = work->rolltime;
else
work_expiry = opt_expiry;
} else {
/* Don't keep rolling work right up to the expiration */
if (work->rolltime > opt_scantime)
work_expiry = (work->rolltime - opt_scantime) * 2 / 3 + opt_scantime;
else /* Shouldn't happen unless someone increases scantime */
work_expiry = opt_scantime;
}
pool = work->pool;
/* Factor in the average getwork delay of this pool, rounding it up to
* the nearest second */
getwork_delay = pool->cgminer_pool_stats.getwork_wait_rolling * 5 + 1;
if (!share) {
work_expiry -= getwork_delay;
if (unlikely(work_expiry < 5))
work_expiry = 5;
} else
work_expiry += getwork_delay;
work_expiry -= getwork_delay;
if (unlikely(work_expiry < 5))
work_expiry = 5;
gettimeofday(&now, NULL);
if ((now.tv_sec - work->tv_staged.tv_sec) >= work_expiry)