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qemuserver : iothrottle add support for throttling burst max

Browse Source 
http://git.qemu.org/?p=qemu.git;a=commit;h=3e9fab690d59ac15956c3733fe0794ce1ae4c4af

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
This commit is contained in:
Alexandre Derumier 2013-12-04 15:12:36 +01:00 committed by Dietmar Maurer
parent 5b952ff541
commit 74edd76ba8
2 changed files with 25 additions and 5 deletions
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16
PVE/API2/Qemu.pm
View File

@ -763,14 +763,26 @@ my $vmconfig_update_disk = sub {
&$safe_num_ne($drive->{mbps_wr}, $old_drive->{mbps_wr}) ||
&$safe_num_ne($drive->{iops}, $old_drive->{iops}) ||
&$safe_num_ne($drive->{iops_rd}, $old_drive->{iops_rd}) ||
&$safe_num_ne($drive->{iops_wr}, $old_drive->{iops_wr})) {
&$safe_num_ne($drive->{iops_wr}, $old_drive->{iops_wr}) ||
&$safe_num_ne($drive->{mbps_max}, $old_drive->{mbps_max}) ||
&$safe_num_ne($drive->{mbps_rd_max}, $old_drive->{mbps_rd_max}) ||
&$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}, $old_drive->{iops_wr_max})) {
PVE::QemuServer::qemu_block_set_io_throttle($vmid,"drive-$opt",
($drive->{mbps} || 0)*1024*1024,
($drive->{mbps_rd} || 0)*1024*1024,
($drive->{mbps_wr} || 0)*1024*1024,
$drive->{iops} || 0,
$drive->{iops_rd} || 0,
$drive->{iops_wr} || 0)
$drive->{iops_wr} || 0,
($drive->{mbps_max} || 0)*1024*1024,
($drive->{mbps_rd_max} || 0)*1024*1024,
($drive->{mbps_wr_max} || 0)*1024*1024,
$drive->{iops_max} || 0,
$drive->{iops_rd_max} || 0,
$drive->{iops_wr_max} || 0)
if !PVE::QemuServer::drive_is_cdrom($drive);
}
}

14
PVE/QemuServer.pm
View File

@ -887,7 +887,7 @@ sub parse_drive {
foreach my $p (split (/,/, $data)) {
next if $p =~ m/^\s*$/;
if ($p =~ m/^(file|volume|cyls|heads|secs|trans|media|snapshot|cache|format|rerror|werror|backup|aio|bps|mbps|bps_rd|mbps_rd|bps_wr|mbps_wr|iops|iops_rd|iops_wr|size|discard)=(.+)$/) {
if ($p =~ m/^(file|volume|cyls|heads|secs|trans|media|snapshot|cache|format|rerror|werror|backup|aio|bps|mbps|mbps_max|bps_rd|mbps_rd|mbps_rd_max|bps_wr|mbps_wr|mbps_wr_max|iops|iops_max|iops_rd|iops_rd_max|iops_wr|iops_wr_max|size|discard)=(.+)$/) {
my ($k, $v) = ($1, $2);
$k = 'file' if $k eq 'volume';
@ -934,14 +934,22 @@ sub parse_drive {
return undef if $res->{mbps_wr} && $res->{mbps};
return undef if $res->{mbps} && $res->{mbps} !~ m/^\d+(\.\d+)?$/;
return undef if $res->{mbps_max} && $res->{mbps_max} !~ m/^\d+(\.\d+)?$/;
return undef if $res->{mbps_rd} && $res->{mbps_rd} !~ m/^\d+(\.\d+)?$/;
return undef if $res->{mbps_rd_max} && $res->{mbps_rd_max} !~ m/^\d+(\.\d+)?$/;
return undef if $res->{mbps_wr} && $res->{mbps_wr} !~ m/^\d+(\.\d+)?$/;
return undef if $res->{mbps_wr_max} && $res->{mbps_wr_max} !~ m/^\d+(\.\d+)?$/;
return undef if $res->{iops_rd} && $res->{iops};
return undef if $res->{iops_wr} && $res->{iops};
return undef if $res->{iops} && $res->{iops} !~ m/^\d+$/;
return undef if $res->{iops_max} && $res->{iops_max} !~ m/^\d+$/;
return undef if $res->{iops_rd} && $res->{iops_rd} !~ m/^\d+$/;
return undef if $res->{iops_rd_max} && $res->{iops_rd_max} !~ m/^\d+$/;
return undef if $res->{iops_wr} && $res->{iops_wr} !~ m/^\d+$/;
return undef if $res->{iops_wr_max} && $res->{iops_wr_max} !~ m/^\d+$/;
if ($res->{size}) {
@ -962,13 +970,13 @@ sub parse_drive {
return $res;
}
my @qemu_drive_options = qw(heads secs cyls trans media format cache snapshot rerror werror aio discard iops iops_rd iops_wr);
my @qemu_drive_options = qw(heads secs cyls trans media format cache snapshot rerror werror aio discard iops iops_rd iops_wr iops_max iops_rd_max iops_wr_max);
sub print_drive {
my ($vmid, $drive) = @_;
my $opts = '';
foreach my $o (@qemu_drive_options, 'mbps', 'mbps_rd', 'mbps_wr', 'backup') {
foreach my $o (@qemu_drive_options, 'mbps', 'mbps_rd', 'mbps_wr', 'mbps_max', 'mbps_rd_max', 'mbps_wr_max', 'backup') {
$opts .= ",$o=$drive->{$o}" if $drive->{$o};
}