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| author | Frank Ch. Eigler <fche@redhat.com> | 2022-04-03 12:47:17 -0400 |
|---|---|---|
| committer | Frank Ch. Eigler <fche@redhat.com> | 2022-04-03 12:47:17 -0400 |
| commit | e646e363e72e06e0ed5574c929236d815ddcbbaf (patch) | |
| tree | 98084e89891ccb584ab2f616ae087d89d187f7e1 | |
| parent | e3e2ae06fbfcd1b2f3de6945689ef9d9c94a2123 (diff) | |
PR28708: debuginfod: use MHD_USE_EPOLL for microhttpd threads
Testing on s390x and other architectures indicates that this
configuration reduces thundering-herd wakeups and saturation of a
small number of threads. The run-debuginfod-webapi-concurrency.sh
test appears solid now.
Signed-off-by: Frank Ch. Eigler <fche@redhat.com>
| -rw-r--r-- | debuginfod/ChangeLog | 5 | ||||
| -rw-r--r-- | debuginfod/debuginfod.cxx | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/debuginfod/ChangeLog b/debuginfod/ChangeLog index dfb5d42e..38a389e7 100644 --- a/debuginfod/ChangeLog +++ b/debuginfod/ChangeLog @@ -1,3 +1,8 @@ +2022-04-03 Frank Ch. Eigler <fche@redhat.com> + + * debuginfod.cxx (main): Use MHD_USE_EPOLL for libmicrohttpd, to + encourage more round-robin dispatch of incoming connections. + 2021-12-09 Alexander Kanavin <alex@linutronix.de> * debuginfod-client.c (cache_clean_default_interval_s): Change type to diff --git a/debuginfod/debuginfod.cxx b/debuginfod/debuginfod.cxx index bb8e8e10..99924d36 100644 --- a/debuginfod/debuginfod.cxx +++ b/debuginfod/debuginfod.cxx @@ -3881,6 +3881,9 @@ main (int argc, char *argv[]) #else | MHD_USE_SELECT_INTERNALLY #endif +#ifdef MHD_USE_EPOLL + | MHD_USE_EPOLL +#endif | MHD_USE_DEBUG, /* report errors to stderr */ http_port, NULL, NULL, /* default accept policy */ @@ -3895,6 +3898,9 @@ main (int argc, char *argv[]) #else | MHD_USE_SELECT_INTERNALLY #endif +#ifdef MHD_USE_EPOLL + | MHD_USE_EPOLL +#endif | MHD_USE_IPv6 | MHD_USE_DEBUG, /* report errors to stderr */ http_port, |