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authorDimitri Staessens <dimitri.staessens@ugent.be>2018-04-02 08:19:54 +0200
committerSander Vrijders <sander.vrijders@ugent.be>2018-04-05 10:31:52 +0200
commit3b03c4b2bcbcf5a913a3127d2b45283540c505c3 (patch)
treefc18ab41a741f7d6ce3b05145558a1cf83c422f8 /src/ipcpd/udp
parentb81d5a327d272db9b511217665b5febceccb725d (diff)
downloadouroboros-3b03c4b2bcbcf5a913a3127d2b45283540c505c3.tar.gz
ouroboros-3b03c4b2bcbcf5a913a3127d2b45283540c505c3.zip
ipcpd: Enable locking threads to a CPU core
This adds a function that locks a thread to a random core. This greatly improves performance on multi-cpu systems. There is no portable way to do this, this only implements it for GNU/Linux. Signed-off-by: Dimitri Staessens <dimitri.staessens@ugent.be> Signed-off-by: Sander Vrijders <sander.vrijders@ugent.be>
Diffstat (limited to 'src/ipcpd/udp')
-rw-r--r--src/ipcpd/udp/main.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/ipcpd/udp/main.c b/src/ipcpd/udp/main.c
index ba613150..be7491f4 100644
--- a/src/ipcpd/udp/main.c
+++ b/src/ipcpd/udp/main.c
@@ -470,6 +470,8 @@ static void * ipcp_udp_sdu_reader(void * o)
(void) o;
+ ipcp_lock_to_core();
+
while (true) {
pthread_rwlock_rdlock(&udp_data.flows_lock);
pthread_mutex_lock(&udp_data.fd_set_lock);
@@ -518,6 +520,8 @@ static void * ipcp_udp_sdu_loop(void * o)
(void) o;
+ ipcp_lock_to_core();
+
while (true) {
fevent(udp_data.np1_flows, udp_data.fq, NULL);
while ((fd = fqueue_next(udp_data.fq)) >= 0) {