[ovs-dev] [PATCH 1/5] Do not renice the netback thread.
Ian Campbell
ian.campbell at citrix.com
Wed Sep 9 17:08:58 UTC 2009
We should increase the vswitchd daemon's priority instead.
Reverts 641a0a4ed
---
xenserver/etc_init.d_vswitch | 28 ---------------------
xenserver/root_vswitch_scripts_sysconfig.template | 7 -----
2 files changed, 0 insertions(+), 35 deletions(-)
diff --git a/xenserver/etc_init.d_vswitch b/xenserver/etc_init.d_vswitch
index bb0011e..ae0b606 100755
--- a/xenserver/etc_init.d_vswitch
+++ b/xenserver/etc_init.d_vswitch
@@ -34,7 +34,6 @@ test -e /etc/sysconfig/vswitch && . /etc/sysconfig/vswitch
: ${VSWITCHD_PIDFILE:=/var/run/ovs-vswitchd.pid}
: ${VSWITCHD_RUN_DIR:=/var/xen/vswitch}
: ${VSWITCHD_PRIORITY:=-5}
-: ${VSWITCHD_NETBACK_PRIORITY:=0}
: ${VSWITCHD_LOGFILE:=/var/log/ovs-vswitchd.log}
: ${VSWITCHD_FILE_LOGLEVEL:=}
: ${VSWITCHD_SYSLOG_LOGLEVEL:=WARN}
@@ -113,28 +112,6 @@ function reload_vswitchd {
fi
}
-function quietly {
- "$@" > /dev/null
-}
-
-# renice_netback PRIORITY PID [PID...]
-#
-# Renices the netback processes given as each PID to nice level PRIORITY.
-function renice_netback {
- local pri=$1
- shift
-
- if test $# = 0; then
- warning "Netback not running, nothing to renice"
- return
- fi
-
- for pid
- do
- action "Renicing netback (pid $pid) to priority $pri" quietly renice $pri -p $pid
- done
-}
-
function start_vswitchd {
local syslog_opt="-vANY:SYSLOG:${VSWITCHD_SYSLOG_LOGLEVEL}"
local logfile_file_opt=""
@@ -172,11 +149,6 @@ function start_vswitchd {
if [ "$ENABLE_FAKE_PROC_NET" = "y" ]; then
fake_proc_net_opt="--fake-proc-net"
fi
- if [ "$VSWITCHD_NETBACK_PRIORITY" != default ]; then
- renice_netback $VSWITCHD_NETBACK_PRIORITY $(pidof netback)
- else
- warning "Netback renicing disabled (see /etc/sysconfig/vswitch)"
- fi
if [ "$daemonize" != "y" ]; then
# Start in background and force a "success" message
action "Starting ovs-vswitchd ($strace_opt$valgrind_opt)" true
diff --git a/xenserver/root_vswitch_scripts_sysconfig.template b/xenserver/root_vswitch_scripts_sysconfig.template
index 4bc4b19..295392e 100644
--- a/xenserver/root_vswitch_scripts_sysconfig.template
+++ b/xenserver/root_vswitch_scripts_sysconfig.template
@@ -43,13 +43,6 @@
# processes.
# VSWITCHD_PRIORITY=-5
-# VSWITCHD_NETBACK_PRIORITY: "nice" priority at which to run netback.
-# It is a good idea to run ovs-vswitchd at a higher priority than
-# netback to ensure that it gets enough CPU time to set up flows
-# (bug #1656). Set this to 'default' to avoid changing netback's
-# priority.
-# VSWITCHD_NETBACK_PRIORITY=0
-
# VSWITCHD_LOGFILE: File to send the FILE_LOGLEVEL log messages to.
# VSWITCHD_LOGFILE=/var/log/ovs-vswitchd.log
--
1.5.6.5
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