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Diffstat (limited to 'doc/libmicrohttpd.texi')
| -rw-r--r-- | doc/libmicrohttpd.texi | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/libmicrohttpd.texi b/doc/libmicrohttpd.texi index 497595cc..408f471d 100644 --- a/doc/libmicrohttpd.texi +++ b/doc/libmicrohttpd.texi @@ -520,6 +520,25 @@ call has fundamentally lower complexity (O(1) for @code{epoll()} vs. O(n) for @code{select()}/@code{poll()} where n is the number of open connections). +@item MHD_USE_EPOLL_TURBO +@cindex performance +Enable optimizations to aggressively improve performance. Note that +the option is a slight misnomer, as these days it also enables optimziations +that are unrelated to @code{MHD_USE_EPOLL_LINUX_ONLY}. Hence it is OK to +use this option with other event loops. + +Currently, the optimizations this option enables are based on +opportunistic reads and writes. Bascially, MHD will simply try to +read or write or accept on a socket before checking that the socket is +ready for IO using the event loop mechanism. As the sockets are +non-blocking, this may fail (at a loss of performance), but generally +MHD does this in situations where the operation is likely to succeed, +in which case performance is improved. Setting the flag should generally +be safe (even though the code is slightly more experimental). You may +want to benchmark your application to see if this makes any difference +for you. + + @item MHD_SUPPRESS_DATE_NO_CLOCK @cindex date @cindex clock |