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Close #1195: support iops/bps_max_length throttling options

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Wolfgang Bumiller 2016-11-03 08:17:28 +01:00 committed by Dietmar Maurer
parent f90912016a
commit 9196a8ec62
1 changed files with 68 additions and 22 deletions
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90
PVE/QemuServer.pm
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@ -822,32 +822,42 @@ my %queues_fmt = (
);
my $add_throttle_desc = sub {
my ($key, $type, $what, $unit, $longunit) = @_;
$drivedesc_base{$key} = {
my ($key, $type, $what, $unit, $longunit, $minimum) = @_;
my $d = {
type => $type,
format_description => $unit,
description => "Maximum $what speed in $longunit per second.",
description => "Maximum $what in $longunit.",
optional => 1,
};
$d->{minimum} = $minimum if defined($minimum);
$drivedesc_base{$key} = $d;
};
# throughput: (leaky bucket)
$add_throttle_desc->('bps', 'integer', 'r/w speed', 'bps', 'bytes');
$add_throttle_desc->('bps_rd', 'integer', 'read speed', 'bps', 'bytes');
$add_throttle_desc->('bps_wr', 'integer', 'write speed', 'bps', 'bytes');
$add_throttle_desc->('mbps', 'number', 'r/w speed', 'mbps', 'megabytes');
$add_throttle_desc->('mbps_rd', 'number', 'read speed', 'mbps', 'megabytes');
$add_throttle_desc->('mbps_wr', 'number', 'write speed', 'mbps', 'megabytes');
$add_throttle_desc->('iops', 'integer', 'r/w I/O', 'iops', 'operations');
$add_throttle_desc->('iops_rd', 'integer', 'read I/O', 'iops', 'operations');
$add_throttle_desc->('iops_wr', 'integer', 'write I/O', 'iops', 'operations');
$add_throttle_desc->('bps', 'integer', 'r/w speed', 'bps per second', 'bytes');
$add_throttle_desc->('bps_rd', 'integer', 'read speed', 'bps per second', 'bytes');
$add_throttle_desc->('bps_wr', 'integer', 'write speed', 'bps per second', 'bytes');
$add_throttle_desc->('mbps', 'number', 'r/w speed', 'mbps per second', 'megabytes');
$add_throttle_desc->('mbps_rd', 'number', 'read speed', 'mbps per second', 'megabytes');
$add_throttle_desc->('mbps_wr', 'number', 'write speed', 'mbps per second', 'megabytes');
$add_throttle_desc->('iops', 'integer', 'r/w I/O', 'iops per second', 'operations');
$add_throttle_desc->('iops_rd', 'integer', 'read I/O', 'iops per second', 'operations');
$add_throttle_desc->('iops_wr', 'integer', 'write I/O', 'iops per second', 'operations');
# pools: (pool of IO before throttling starts taking effect)
$add_throttle_desc->('mbps_max', 'number', 'unthrottled r/w pool', 'mbps', 'megabytes');
$add_throttle_desc->('mbps_rd_max', 'number', 'unthrottled read pool', 'mbps', 'megabytes');
$add_throttle_desc->('mbps_wr_max', 'number', 'unthrottled write pool', 'mbps', 'megabytes');
$add_throttle_desc->('iops_max', 'integer', 'unthrottled r/w I/O pool', 'iops', 'operations');
$add_throttle_desc->('iops_rd_max', 'integer', 'unthrottled read I/O pool', 'iops', 'operations');
$add_throttle_desc->('iops_wr_max', 'integer', 'unthrottled write I/O pool', 'iops', 'operations');
$add_throttle_desc->('mbps_max', 'number', 'unthrottled r/w pool', 'mbps per second', 'megabytes');
$add_throttle_desc->('mbps_rd_max', 'number', 'unthrottled read pool', 'mbps per second', 'megabytes');
$add_throttle_desc->('mbps_wr_max', 'number', 'unthrottled write pool', 'mbps per second', 'megabytes');
$add_throttle_desc->('iops_max', 'integer', 'unthrottled r/w I/O pool', 'iops per second', 'operations');
$add_throttle_desc->('iops_rd_max', 'integer', 'unthrottled read I/O pool', 'iops per second', 'operations');
$add_throttle_desc->('iops_wr_max', 'integer', 'unthrottled write I/O pool', 'iops per second', 'operations');
# burst lengths
$add_throttle_desc->('bps_max_length', 'integer', 'length of I/O bursts', 'seconds', 'seconds', 1);
$add_throttle_desc->('bps_rd_length', 'integer', 'length of read I/O bursts', 'seconds', 'seconds', 1);
$add_throttle_desc->('bps_wr_length', 'integer', 'length of write I/O bursts', 'seconds', 'seconds', 1);
$add_throttle_desc->('iops_max_length', 'integer', 'length of I/O bursts', 'seconds', 'seconds', 1);
$add_throttle_desc->('iops_rd_length', 'integer', 'length of read I/O bursts', 'seconds', 'seconds', 1);
$add_throttle_desc->('iops_wr_length', 'integer', 'length of write I/O bursts', 'seconds', 'seconds', 1);
my $ide_fmt = {
%drivedesc_base,
@ -1339,6 +1349,22 @@ sub parse_drive {
$res->{"m$opt"} = sprintf("%.3f", $bps / (1024*1024.0));
}
}
# can't use the schema's 'requires' because of the mbps* => bps* "transforming aliases"
for my $requirement (
[bps_max_length => 'mbps_max'],
[bps_rd_max_length => 'mbps_rd_max'],
[bps_wr_max_length => 'mbps_wr_max'],
[iops_max_length => 'iops_max'],
[iops_rd_max_length => 'iops_rd_max'],
[iops_wr_max_length => 'iops_wr_max']) {
my ($option, $requires) = @$requirement;
if ($res->{$option} && !$res->{$requires}) {
warn "$option requires $requires\n";
++$error;
}
}
return undef if $error;
return undef if $res->{mbps_rd} && $res->{mbps};
@ -3828,7 +3854,9 @@ sub qemu_cpu_hotplug {
sub qemu_block_set_io_throttle {
my ($vmid, $deviceid,
$bps, $bps_rd, $bps_wr, $iops, $iops_rd, $iops_wr,
$bps_max, $bps_rd_max, $bps_wr_max, $iops_max, $iops_rd_max, $iops_wr_max) = @_;
$bps_max, $bps_rd_max, $bps_wr_max, $iops_max, $iops_rd_max, $iops_wr_max,
$bps_max_length, $bps_rd_max_length, $bps_wr_max_length,
$iops_max_length, $iops_rd_max_length, $iops_wr_max_length) = @_;
return if !check_running($vmid) ;
@ -3844,7 +3872,13 @@ sub qemu_block_set_io_throttle {
bps_wr_max => int($bps_wr_max),
iops_max => int($iops_max),
iops_rd_max => int($iops_rd_max),
iops_wr_max => int($iops_wr_max)
iops_wr_max => int($iops_wr_max),
bps_max_length => int($bps_max_length),
bps_rd_max_length => int($bps_rd_max_length),
bps_wr_max_length => int($bps_wr_max_length),
iops_max_length => int($iops_max_length),
iops_rd_max_length => int($iops_rd_max_length),
iops_wr_max_length => int($iops_wr_max_length),
);
}
@ -4385,7 +4419,13 @@ sub vmconfig_update_disk {
&$safe_num_ne($drive->{mbps_wr_max}, $old_drive->{mbps_wr_max}) ||
&$safe_num_ne($drive->{iops_max}, $old_drive->{iops_max}) ||
&$safe_num_ne($drive->{iops_rd_max}, $old_drive->{iops_rd_max}) ||
&$safe_num_ne($drive->{iops_wr_max}, $old_drive->{iops_wr_max})) {
&$safe_num_ne($drive->{iops_wr_max}, $old_drive->{iops_wr_max}) ||
&$safe_num_ne($drive->{bps_max_length}, $old_drive->{bps_max_length}) ||
&$safe_num_ne($drive->{bps_rd_max_length}, $old_drive->{bps_rd_max_length}) ||
&$safe_num_ne($drive->{bps_wr_max_length}, $old_drive->{bps_wr_max_length}) ||
&$safe_num_ne($drive->{iops_max_length}, $old_drive->{iops_max_length}) ||
&$safe_num_ne($drive->{iops_rd_max_length}, $old_drive->{iops_rd_max_length}) ||
&$safe_num_ne($drive->{iops_wr_max_length}, $old_drive->{iops_wr_max_length})) {
qemu_block_set_io_throttle($vmid,"drive-$opt",
($drive->{mbps} || 0)*1024*1024,
@ -4399,7 +4439,13 @@ sub vmconfig_update_disk {
($drive->{mbps_wr_max} || 0)*1024*1024,
$drive->{iops_max} || 0,
$drive->{iops_rd_max} || 0,
$drive->{iops_wr_max} || 0);
$drive->{iops_wr_max} || 0,
$drive->{bps_max_length} || 1,
$drive->{bps_rd_max_length} || 1,
$drive->{bps_wr_max_length} || 1,
$drive->{iops_max_length} || 1,
$drive->{iops_rd_max_length} || 1,
$drive->{iops_wr_max_length} || 1);
}