> 在 2015年3月23日，下午3:18，Dietmar Maurer <[email protected]> 写道： > > We do not use TC to rate limit qemu network devices (we use qemu internal rate > limit features).
hi,
i see those code, use tc for rate limit also?
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QemuServer.pm
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die "internal error" if $opt !~ m/net(\d+)/;
my $iface = "tap${vmid}i$1";
if (&$safe_num_ne($oldnet->{rate}, $newnet->{rate})) {
PVE::Network::tap_rate_limit($iface, $newnet->{rate});
}
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Network.pm
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sub setup_tc_rate_limit {
my ($iface, $rate, $burst, $debug) = @_;
system("/sbin/tc class del dev $iface parent 1: classid 1:1 >/dev/null
2>&1");
system("/sbin/tc filter del dev $iface parent ffff: protocol ip prio 50
estimator 1sec 8sec >/dev/null 2>&1”);
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system("/sbin/tc class ls dev $iface");
system("/sbin/tc filter ls dev $iface parent ffff:");
}
}
sub tap_rate_limit {
my ($iface, $rate) = @_;
my $debug = 0;
$rate = int($rate*1024*1024);
my $burst = 1024*1024;
setup_tc_rate_limit($iface, $rate, $burst, $debug);
}
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