diff options
| author | Daniel Stenberg <daniel@haxx.se> | 2013-07-14 17:33:24 +0200 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2013-07-19 23:27:17 +0200 |
| commit | d529f3882b9bca2c3eb32295dd6b2609d0c9b51f (patch) | |
| tree | 36f705876abfddbc77f6d6b89a3cf070bd1fed30 | |
| parent | e2e92486a740e9a5b984ae9ff8c74e9d50dd35d7 (diff) | |
curl_easy_perform: gradually increase the delay time
Instead of going 50,100,150 etc millisecond delay time when nothing has
been found to do or wait for, we now start lower and double each loop as
in 4,8,16,32 etc.
This lowers the minimum wait without sacrifizing the longer wait too
much with unnecessary CPU cycles burnt.
Bug: http://curl.haxx.se/mail/lib-2013-07/0103.html
Reported-by: Andreas Malzahn
| -rw-r--r-- | lib/easy.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/lib/easy.c b/lib/easy.c index 995328e1d..d84ecf541 100644 --- a/lib/easy.c +++ b/lib/easy.c @@ -539,9 +539,7 @@ CURLcode curl_easy_perform(CURL *easy) if(curlx_tvdiff(after, before) <= 10) { without_fds++; if(without_fds > 2) { - int sleep_ms = without_fds * 50; - if(sleep_ms > 1000) - sleep_ms = 1000; + int sleep_ms = without_fds < 10 ? (1 << (without_fds-1)): 1000; Curl_wait_ms(sleep_ms); } } |