Statistics - Revision history

Radostin at 20:31, 26 February 2025

2025-02-26T20:31:54Z

Ymanton: Update show command to use crit

2022-07-25T16:55:30Z

Update show command to use crit

Radostin: /* Restore stats */ Fix typo

2018-04-30T16:02:33Z

Restore stats: Fix typo

Xemul: Categorized

2014-12-31T10:44:41Z

Categorized

Xemul: + restore stats

2013-09-03T11:29:27Z

+ restore stats

Xemul: Add info how to read stats file

2013-05-15T11:59:29Z

Add info how to read stats file

Xemul: Created page with "CRIU generates a set of `stats-` files that contain statistics about how dump/restore went. == Dump/Pre-dump stats == These are in `stats-dump` f..."

2013-05-15T11:57:10Z

Created page with "CRIU generates a set of <code>stats-<type></code> files that contain statistics about how dump/restore went. == Dump/Pre-dump stats == These are in <code>stats-dump</code> f..."

New page

CRIU generates a set of <code>stats-<type></code> files that contain statistics about how dump/restore went.

== Dump/Pre-dump stats ==

These are in <code>stats-dump</code> file. Fields are:

;<code>freezing_time</code>
:Time it took criu to freeze the process tree

;<code>frozen_time</code>
:Time tasks were in frozen state

;<code>memdump_time</code>
:Time criu spent grabbing required pages out of processes. This time does ''not'' include the next time

;<code>memwrite_time</code>
:Time criu spend transferring memory pages into image files (locally or on page-server)

All the above times are in microseconds.

;<code>pages_scanned</code>
:The number of pages criu looked at to decide whether or not to dump them

;<code>pages_skipped_parent</code>
:The number of pages criu skipped due to they were found in parent images (read about [[memory changes tracking]])

;<code>pages_written</code>
:The total number of pages criu put into image files

← Older revision		Revision as of 16:55, 25 July 2022
Line 1:		Line 1:
−	CRIU generates a set of <code>stats-<type></code> files that contain statistics about how dump/restore went. These files are in google-protocol-buffers format, just like the [[images]] are, and can be viewed using the <code>criu show -f [FILE]</code> ~~command~~.	+	CRIU generates a set of <code>stats-<type></code> files that contain statistics about how dump/restore went. These files are in google-protocol-buffers format, just like the [[images]] are, and can be viewed using the <code>crit show [FILE]</code> command (<code>criu show -f [FILE]</code> in previous versions).

	== Dump/Pre-dump stats ==		== Dump/Pre-dump stats ==

@@ Line 37: / Line 37: @@
 ;<code>pages_compared</code>
-:Number of pages compered for being COW-ed
+:Number of pages compared for being COW-ed
 ;<code>pages_skipped_cow</code>

← Older revision		Revision as of 10:44, 31 December 2014
Line 41:		Line 41:
	;<code>pages_skipped_cow</code>		;<code>pages_skipped_cow</code>
	:Number of pages, restoration of which was skipped due to COW setup		:Number of pages, restoration of which was skipped due to COW setup
		+
		+	[[Category:API]]

← Older revision		Revision as of 11:29, 3 September 2013
Line 27:		Line 27:
	;<code>pages_written</code>		;<code>pages_written</code>
	:The total number of pages criu put into image files		:The total number of pages criu put into image files
		+
		+	== Restore stats ==
		+
		+	;<code>forking_time</code>
		+	:Time took to fork the tree of processes (with groups and sessions)
		+
		+	;<code>restore_time</code>
		+	:Total time of restore
		+
		+	;<code>pages_compared</code>
		+	:Number of pages compered for being COW-ed
		+
		+	;<code>pages_skipped_cow</code>
		+	:Number of pages, restoration of which was skipped due to COW setup

← Older revision		Revision as of 11:59, 15 May 2013
Line 1:		Line 1:
−	CRIU generates a set of <code>stats-<type></code> files that contain statistics about how dump/restore went.	+	CRIU generates a set of <code>stats-<type></code> files that contain statistics about how dump/restore went. These files are in google-protocol-buffers format, just like the [[images]] are, and can be viewed using the <code>criu show -f [FILE]</code> command.

	== Dump/Pre-dump stats ==		== Dump/Pre-dump stats ==

@@ Line 9: / Line 9: @@
 ;<code>frozen_time</code>
-:Time tasks were in frozen state
+:Time tasks were in frozen state. This time includes <code>memdump_time</code> and <code>memwrite_time</code>.
 ;<code>memdump_time</code>
-:Time criu spent grabbing required pages out of processes. This time does ''not'' include the next time
+:Time criu spent grabbing required pages out of processes. This time includes <code>memwrite_time</code>.
 ;<code>memwrite_time</code>