> Le 16 juin 2017 à 10:13, Juan Hernández <jhern...@redhat.com> a écrit : > > On 06/16/2017 09:52 AM, Fabrice Bacchella wrote: >> I just read the blog entry about performance increate in for the python sdk >> (https://www.ovirt.org/blog/2017/05/higher-performance-for-python-sdk/). >> >> I'm quite sceptical about pipelining.
> In our tests pipe-lining dramatically increases the performance in large > scale environments with high latency. In our tests with 4000 virtual > machines 10000 disks and 150ms of latency retrieving the complete > inventory is reduced from approx 1 hour to approx 2 minutes. > Bench are the ultimate judge. So if it works in many different use case for , that's nice and intersting. > Note that the usage of the HTTP protocol in this scenario is very > different from the typical usage when a browser retrieves a web page. Indeed, all the literature is about interactive usage. A very different use case. > >> It also talks about multiple connection, but don't use pycurl.CurlShare(). I >> thing this might be very helpfull, as it allows to share cookies, see >> https://curl.haxx.se/libcurl/c/CURLOPT_SHARE.html. >> > > The SDK uses the curl "multi" mechanism, which automatically shares the > DNS cache. This: https://curl.haxx.se/libcurl/c/CURLOPT_DNS_USE_GLOBAL_CACHE.html ? WARNING: this option is considered obsolete. Stop using it. Switch over to using the share interface instead! See CURLOPT_SHARE and curl_share_init. > In addition version 4 of the SDK does not use cookies. So > this shouldn't be relevant. From some of my own code: self._share.setopt(pycurl.SH_SHARE, pycurl.LOCK_DATA_COOKIE) self._share.setopt(pycurl.SH_SHARE, pycurl.LOCK_DATA_DNS) self._share.setopt(pycurl.SH_SHARE, pycurl.LOCK_DATA_SSL_SESSION) And users apaches settings can use cookies for custom usages. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users