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Add 'stats-dump' file to exported checkpoint

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There was the question about how long it takes to create a checkpoint.
CRIU already provides some statistics about how long it takes to create
a checkpoint and similar.

With this change the file 'stats-dump' is included in the checkpoint
archive and the tool checkpointctl can be used to display these
statistics:

./checkpointctl show -t /tmp/cp.tar --print-stats

Displaying container checkpoint data from /tmp/dump.tar

[...]
CRIU dump statistics
+---------------+-------------+--------------+---------------+---------------+---------------+
| FREEZING TIME | FROZEN TIME | MEMDUMP TIME | MEMWRITE TIME | PAGES SCANNED | PAGES WRITTEN |
+---------------+-------------+--------------+---------------+---------------+---------------+
| 105405 us     | 1376964 us  | 504399 us    | 446571 us     |        492153 |         88689 |
+---------------+-------------+--------------+---------------+---------------+---------------+

Signed-off-by: Adrian Reber <areber@redhat.com>
This commit is contained in:
Adrian Reber
2021-11-05 15:18:17 +00:00
parent 9b3b44903d
commit 6b8fc3bd1d
22 changed files with 688 additions and 132 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
libpod/container_internal_linux.go
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@ -21,6 +21,7 @@ import (
"time"
metadata "github.com/checkpoint-restore/checkpointctl/lib"
"github.com/checkpoint-restore/go-criu/v5/stats"
cdi "github.com/container-orchestrated-devices/container-device-interface/pkg"
"github.com/containernetworking/plugins/pkg/ns"
"github.com/containers/buildah/pkg/chrootuser"
@ -1013,6 +1014,7 @@ func (c *Container) exportCheckpoint(options ContainerCheckpointOptions) error {
metadata.ConfigDumpFile,
metadata.SpecDumpFile,
metadata.NetworkStatusFile,
stats.StatsDump,
}
if c.LogDriver() == define.KubernetesLogging ||
@ -1197,7 +1199,7 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO
if !options.Keep && !options.PreCheckPoint {
cleanup := []string{
"dump.log",
"stats-dump",
stats.StatsDump,
metadata.ConfigDumpFile,
metadata.SpecDumpFile,
}
@ -1564,8 +1566,8 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
cleanup := [...]string{
"restore.log",
"dump.log",
"stats-dump",
"stats-restore",
stats.StatsDump,
stats.StatsRestore,
metadata.NetworkStatusFile,
metadata.RootFsDiffTar,
metadata.DeletedFilesFile,