Attention is currently required from: dexter, fixeria, laforge, neels. Hello Jenkins Builder, dexter, fixeria, neels, pespin, I'd like you to reexamine a change. Please visit https://gerrit.osmocom.org/c/osmo-mgw/+/36363?usp=email to look at the new patch set (#5). The following approvals got outdated and were removed: Code-Review+1 by fixeria, Verified+1 by Jenkins Builder Change subject: Convert RTP/RTCP/OSMUX I/O from osmo_fd to osmo_io ...................................................................... Convert RTP/RTCP/OSMUX I/O from osmo_fd to osmo_io Converting from osmo_fd to osmo_io allows us to switch to the new io_uring backend and benefit from related performance benefits. In a benchmark running 200 concurrent bi-directional voice calls with GSM-EFR codec, I am observing: * the code before this patch uses 40..42% of a single core on a Ryzen 5950X at 200 calls (=> 200 endpoints with each two connections) * no increase in CPU utilization before/after this patch, i.e. the osmo_io overhead for the osmo_fd backend is insignificant compared to the direct osmo_fd mode before * an almost exactly 50% reduction of CPU utilization when running the same osmo-mgw build with LIBOSMO_IO_BACKEND=IO_URING - top shows 19..21% for the same workload instead of 40..42% with the OSMO_FD default backend. * An increase of about 4 Megabytes in both RSS and VIRT size when enabling the OSMO_IO backend. This is likely the memory-mapped rings. No memory leakage is observed when using either of the backends. Change-Id: I8471960d5d8088a70cf105f2f40dfa5d5458169a --- M include/osmocom/mgcp/mgcp.h M include/osmocom/mgcp/mgcp_network.h M src/libosmo-mgcp/mgcp_conn.c M src/libosmo-mgcp/mgcp_iuup.c M src/libosmo-mgcp/mgcp_network.c M src/libosmo-mgcp/mgcp_osmux.c M tests/mgcp/mgcp_test.c 7 files changed, 234 insertions(+), 169 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-mgw refs/changes/63/36363/5 -- To view, visit https://gerrit.osmocom.org/c/osmo-mgw/+/36363?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-mgw Gerrit-Branch: master Gerrit-Change-Id: I8471960d5d8088a70cf105f2f40dfa5d5458169a Gerrit-Change-Number: 36363 Gerrit-PatchSet: 5 Gerrit-Owner: laforge <laforge@osmocom.org> Gerrit-Reviewer: Jenkins Builder Gerrit-Reviewer: dexter <pmaier@sysmocom.de> Gerrit-Reviewer: fixeria <vyanitskiy@sysmocom.de> Gerrit-Reviewer: neels <nhofmeyr@sysmocom.de> Gerrit-Reviewer: pespin <pespin@sysmocom.de> Gerrit-Attention: neels <nhofmeyr@sysmocom.de> Gerrit-Attention: laforge <laforge@osmocom.org> Gerrit-Attention: fixeria <vyanitskiy@sysmocom.de> Gerrit-Attention: dexter <pmaier@sysmocom.de> Gerrit-MessageType: newpatchset