err.. sorry i got a little hasty there... so i do have a select before my curl_multi_perform with a timeout of 10usecs.
In theory i should be able to even set that to 0 usec's just to poll if there is data ready without even blocking for those 10 usecs. That aside, my issue still remains. If i have a tight loop of polling for more data and a sleep(1) to yield the thread vs polling once a frame, i get vastly different response times on my requests (as stated before). I checked the example code and my code is identical: http://curl.haxx.se/libcurl/c/multi-post.html Any idea what could be going on? On Fri, Feb 4, 2011 at 2:40 PM, Alan Wolfe <[email protected]> wrote: > i'm doing a select before the curl_multi_perform with a small timeout (10 > usec's) > > Now of course it seems obvious what the problem is hehe... i probably > should be using more than 10usec's if i want it to do more work per frame > eh? > > I'm going to give that a shot... thanks a bunch! > > > On Fri, Feb 4, 2011 at 2:03 PM, Dan Fandrich <[email protected]>wrote: > >> On Fri, Feb 04, 2011 at 01:29:28PM -0800, Alan Wolfe wrote: >> > Quick update... i notice that if i tick the multi interface 20 times per >> frame >> > instead of just once, i get response time back down to the 2-3 second >> range. >> > >> > I don't notice any drop in frame rate but i haven't done any real perf >> tests. >> > >> > I'm sure it takes SOME more amount of time but not sure how much, or how >> that >> > amount of time might vary from system to system. >> >> It sounds like you're calling curl_multi_perform() in a busy loop, without >> checking if network sockets are ready or not. If so, this is not the way >> it's >> supposed to be done. The app is supposed to only call it when there is >> data >> ready to read/write or after a timeout. In the meantime, unless there's >> something else for it to do, it should be blocked on a select() or poll() >> call or similar. Please read the man page and take a look at the example >> code to see how this is supposed to work. >> >> >>> Dan >> ------------------------------------------------------------------- >> List admin: http://cool.haxx.se/list/listinfo/curl-library >> Etiquette: http://curl.haxx.se/mail/etiquette.html >> > >
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