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Roll work whenever we can on getwork.

nfactor-troky
Con Kolivas 12 years ago
parent
commit
611f1cec7c
  1. 136
      cgminer.c
  2. 1
      miner.h

136
cgminer.c

@ -1997,8 +1997,6 @@ retry: @@ -1997,8 +1997,6 @@ retry:
if (!rc && retries < 3)
goto retry;
pool->currently_rolling = !!work->rolltime;
gettimeofday(&tv_end, NULL);
timersub(&tv_end, &tv_start, &tv_elapsed);
pool_stats->getwork_wait_rolling += ((double)tv_elapsed.tv_sec + ((double)tv_elapsed.tv_usec / 1000000)) * 0.63;
@ -2287,6 +2285,86 @@ static int global_queued(void) @@ -2287,6 +2285,86 @@ static int global_queued(void)
return ret;
}
static bool stale_work(struct work *work, bool share);
static inline bool should_roll(struct work *work)
{
if (work->pool == current_pool() || pool_strategy == POOL_LOADBALANCE)
return true;
return false;
}
/* Limit rolls to 7000 to not beyond 2 hours in the future where bitcoind will
* reject blocks as invalid. */
static inline bool can_roll(struct work *work)
{
return (work->pool && work->rolltime && !work->clone &&
work->rolls < 7000 && !stale_work(work, false));
}
static void roll_work(struct work *work)
{
uint32_t *work_ntime;
uint32_t ntime;
work_ntime = (uint32_t *)(work->data + 68);
ntime = be32toh(*work_ntime);
ntime++;
*work_ntime = htobe32(ntime);
local_work++;
work->rolls++;
work->blk.nonce = 0;
applog(LOG_DEBUG, "Successfully rolled work");
/* This is now a different work item so it needs a different ID for the
* hashtable */
work->id = total_work++;
}
static struct work *make_clone(struct work *work)
{
struct work *work_clone = make_work();
memcpy(work_clone, work, sizeof(struct work));
work_clone->clone = true;
work_clone->longpoll = false;
work_clone->mandatory = false;
/* Make cloned work appear slightly older to bias towards keeping the
* master work item which can be further rolled */
work_clone->tv_staged.tv_sec -= 1;
return work_clone;
}
static bool stage_work(struct work *work);
static bool clone_available(void)
{
struct work *work, *tmp;
bool cloned = false;
mutex_lock(stgd_lock);
HASH_ITER(hh, staged_work, work, tmp) {
if (can_roll(work) && should_roll(work)) {
struct work *work_clone;
roll_work(work);
work_clone = make_clone(work);
roll_work(work);
applog(LOG_DEBUG, "Pushing cloned available work to stage thread");
if (unlikely(!stage_work(work_clone))) {
free(work_clone);
break;
}
cloned = true;
break;
}
}
mutex_unlock(stgd_lock);
return cloned;
}
static void *get_work_thread(void *userdata)
{
struct workio_cmd *wc = (struct workio_cmd *)userdata;
@ -2313,8 +2391,9 @@ static void *get_work_thread(void *userdata) @@ -2313,8 +2391,9 @@ static void *get_work_thread(void *userdata)
if (!ts)
lagging = true;
else if (((cs || cq >= opt_queue) && ts >= maxq) || ((cs || cq) && tq >= maxq))
goto out;
else if (((cs || cq >= opt_queue) && ts >= maxq) ||
((cs || cq) && tq >= maxq) || clone_available())
goto out;
ret_work = make_work();
if (wc->thr)
@ -3859,40 +3938,6 @@ static struct work *hash_pop(const struct timespec *abstime) @@ -3859,40 +3938,6 @@ static struct work *hash_pop(const struct timespec *abstime)
return work;
}
static inline bool should_roll(struct work *work)
{
if (work->pool == current_pool() || pool_strategy == POOL_LOADBALANCE)
return true;
return false;
}
/* Limit rolls to 7000 to not beyond 2 hours in the future where bitcoind will
* reject blocks as invalid. */
static inline bool can_roll(struct work *work)
{
return (work->pool && work->rolltime && !work->clone &&
work->rolls < 7000 && !stale_work(work, false));
}
static void roll_work(struct work *work)
{
uint32_t *work_ntime;
uint32_t ntime;
work_ntime = (uint32_t *)(work->data + 68);
ntime = be32toh(*work_ntime);
ntime++;
*work_ntime = htobe32(ntime);
local_work++;
work->rolls++;
work->blk.nonce = 0;
applog(LOG_DEBUG, "Successfully rolled work");
/* This is now a different work item so it needs a different ID for the
* hashtable */
work->id = total_work++;
}
static bool reuse_work(struct work *work)
{
if (can_roll(work) && should_roll(work)) {
@ -3902,21 +3947,6 @@ static bool reuse_work(struct work *work) @@ -3902,21 +3947,6 @@ static bool reuse_work(struct work *work)
return false;
}
static struct work *make_clone(struct work *work)
{
struct work *work_clone = make_work();
memcpy(work_clone, work, sizeof(struct work));
work_clone->clone = true;
work_clone->longpoll = false;
work_clone->mandatory = false;
/* Make cloned work appear slightly older to bias towards keeping the
* master work item which can be further rolled */
work_clone->tv_staged.tv_sec -= 1;
return work_clone;
}
/* Clones work by rolling it if possible, and returning a clone instead of the
* original work item which gets staged again to possibly be rolled again in
* the future */

1
miner.h

@ -735,7 +735,6 @@ struct pool { @@ -735,7 +735,6 @@ struct pool {
bool submit_old;
bool removed;
bool lp_started;
bool currently_rolling;
char *hdr_path;
char *lp_url;

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