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Implement load balancing algorithm by rotating requests to each pool.

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This commit is contained in:
Con Kolivas 2011-07-20 13:35:55 +10:00
parent 0ba06c69f9
commit 521025aa75
1 changed files with 22 additions and 7 deletions
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29
main.c
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@ -731,7 +731,10 @@ static void curses_print_status(int thr_id)
local_work, total_lo, total_ro, scan_intensity);
wclrtoeol(statuswin);
wmove(statuswin, 4, 0);
wprintw(statuswin, " Connected to %s as user %s", pool->rpc_url, pool->rpc_user);
if (pool_strategy == POOL_LOADBALANCE && total_pools > 1)
wprintw(statuswin, " Connected to multiple pools");
else
wprintw(statuswin, " Connected to %s as user %s", pool->rpc_url, pool->rpc_user);
wclrtoeol(statuswin);
wmove(statuswin, 5, 0);
wprintw(statuswin, " Block %s started: %s", current_block + 4, blockdate);
@ -888,9 +891,24 @@ out_nofree:
static const char *rpc_req =
"{\"method\": \"getwork\", \"params\": [], \"id\":0}\r\n";
static int rotating_pool;
/* Select any active pool in a rotating fashion when loadbalance is chosen */
static inline struct pool *select_pool(void)
{
if (pool_strategy == POOL_LOADBALANCE) {
rotating_pool++;
if (rotating_pool >= total_pools)
rotating_pool = 0;
if (!pools[rotating_pool].idle)
return &pools[rotating_pool];
}
return current_pool();
}
static bool get_upstream_work(struct work *work)
{
struct pool *pool = current_pool();
struct pool *pool = select_pool();
json_t *val;
bool rc = false;
CURL *curl = curl_easy_init();
@ -909,6 +927,8 @@ static bool get_upstream_work(struct work *work)
rc = work_decode(json_object_get(val, "result"), work);
work->pool = pool;
total_getworks++;
pool->getwork_requested++;
json_decref(val);
out:
@ -1498,15 +1518,12 @@ static bool queue_request(void)
{
int maxq = opt_queue + mining_threads;
struct workio_cmd *wc;
struct pool *pool;
/* If we've been generating lots of local work we may already have
* enough in the queue */
if (requests_queued() >= maxq || real_staged() >= maxq)
return true;
pool = current_pool();
/* fill out work request message */
wc = calloc(1, sizeof(*wc));
if (unlikely(!wc)) {
@ -1524,8 +1541,6 @@ static bool queue_request(void)
workio_cmd_free(wc);
return false;
}
total_getworks++;
pool->getwork_requested++;
inc_queued();
return true;
}