Proxmox/pve-common
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new function to setup tc rate limits.

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This commit is contained in:
Dietmar Maurer 2012-03-28 10:33:07 +02:00
parent b9436cda61
commit 74d1b045bd
1 changed files with 32 additions and 1 deletions
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33
data/PVE/Network.pm
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@ -1,13 +1,44 @@
package PVE::Network;
use strict;
use PVE::Tools;
use PVE::Tools qw(run_command);
use PVE::ProcFSTools;
use PVE::INotify;
use File::Basename;
# host network related utility functions
sub setup_tc_rate_limit {
my ($iface, $rate, $burst, $debug) = @_;
system("/sbin/tc qdisc del dev $iface ingres >/dev/null 2>&1");
system("/sbin/tc qdisc del dev $iface root >/dev/null 2>&1");
run_command("/sbin/tc qdisc add dev $iface handle ffff: ingress");
# this does not work wit virtio - don't know why
#run_command("/sbin/tc filter add dev $iface parent ffff: protocol ip prio 50 u32 match ip src 0.0.0.0/0 police rate ${rate}bps burst ${burst}b drop flowid :1");
# so we use avrate instead
run_command("/sbin/tc filter add dev $iface parent ffff: " .
"protocol ip prio 50 estimator 1sec 8sec " .
"u32 match ip src 0.0.0.0/0 police avrate ${rate}bps drop flowid :1");
# tbf does not work for unknown reason
#$TC qdisc add dev $DEV root tbf rate $RATE latency 100ms burst $BURST
# so we use htb instead
run_command("/sbin/tc qdisc add dev $iface root handle 1: htb default 1");
run_command("/sbin/tc class add dev $iface parent 1: classid 1:1 " .
"htb rate ${rate}bps burst ${burst}b");
if ($debug) {
print "DEBUG tc settings\n";
system("/sbin/tc qdisc ls dev $iface");
system("/sbin/tc class ls dev $iface");
system("/sbin/tc filter ls dev $iface parent ffff:");
}
}
sub copy_bridge_config {
my ($br0, $br1) = @_;