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authorAdrian Reber <areber@redhat.com>2021-11-09 09:15:50 +0000
committerAdrian Reber <areber@redhat.com>2021-11-15 11:50:24 +0000
commit6202e8102b9728f89c2ab7bb504306a2bd007878 (patch)
treee5233ba6f948d62a59f2338b7f34827f6ff76eb2 /pkg/api/server/register_containers.go
parentcca6df428cb9ce187ae1341740ac1137c7a67a75 (diff)
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Added optional container checkpointing statistics
This adds the parameter '--print-stats' to 'podman container checkpoint'. With '--print-stats' Podman will measure how long Podman itself, the OCI runtime and CRIU requires to create a checkpoint and print out these information. CRIU already creates checkpointing statistics which are just read in addition to the added measurements. In contrast to just printing out the ID of the checkpointed container, Podman will now print out JSON: # podman container checkpoint --latest --print-stats { "podman_checkpoint_duration": 360749, "container_statistics": [ { "Id": "25244244bf2efbef30fb6857ddea8cb2e5489f07eb6659e20dda117f0c466808", "runtime_checkpoint_duration": 177222, "criu_statistics": { "freezing_time": 100657, "frozen_time": 60700, "memdump_time": 8162, "memwrite_time": 4224, "pages_scanned": 20561, "pages_written": 2129 } } ] } The output contains 'podman_checkpoint_duration' which contains the number of microseconds Podman required to create the checkpoint. The output also includes 'runtime_checkpoint_duration' which is the time the runtime needed to checkpoint that specific container. Each container also includes 'criu_statistics' which displays the timing information collected by CRIU. Signed-off-by: Adrian Reber <areber@redhat.com>
Diffstat (limited to 'pkg/api/server/register_containers.go')
-rw-r--r--pkg/api/server/register_containers.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/pkg/api/server/register_containers.go b/pkg/api/server/register_containers.go
index c4919182b..e98098f97 100644
--- a/pkg/api/server/register_containers.go
+++ b/pkg/api/server/register_containers.go
@@ -1441,6 +1441,10 @@ func (s *APIServer) registerContainersHandlers(r *mux.Router) error {
// name: ignoreRootFS
// type: boolean
// description: do not include root file-system changes when exporting
+ // - in: query
+ // name: printStats
+ // type: boolean
+ // description: add checkpoint statistics to the returned CheckpointReport
// produces:
// - application/json
// responses: