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<font face="Helvetica, Arial, sans-serif">Hi Ranjan,<br>
<br>
memwrite_time: Time criu spend transferring memory pages into
image files (locally or on page-server)<br>
pages_written: The total number of pages criu put into image files<br>
<br>
You can find more information about the times measured by criu in
<a class="moz-txt-link-freetext" href="https://criu.org/Statistics">https://criu.org/Statistics</a><br>
Also you can see these times with the --display-stats option.<br>
</font><br>
Regards,<br>
Radostin<br>
<br>
<div class="moz-cite-prefix">On 24/05/18 03:58, Ranjan Sarpangala
Venkatesh wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CA+YNxZNu9PqoSs3mHK-MH_H8JcqLbB4=WorrC-YJPEgiNe8ZvA@mail.gmail.com">
<div dir="ltr">Hi,
<div><br>
</div>
<div>Following are the statistics collected while creating
incremental dumps of an application using</div>
<div><br>
</div>
<div>criu dump --tree $PID --images-dir ./checkpoints/$i/
--leave-running -vvv -o dump.log</div>
<div><br>
</div>
<div>Dump 1, <span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">"pages_written":
2832, <span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">"memwrite_time":
11743,</span></span></div>
<div><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Dump
2, <span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span> </span>"pages_written":
2034, <span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">"memwrite_time":
45700,</span></span></span></span></div>
<div><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br>
</span></span></span></span></div>
<div><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Dump
2 takes much longer while writing less number of
pages. Is this due to behavior of splice(). Custom
kernel version based on 4.10.0. Any insights would be
helpful. Thanks</span></span></span></span></div>
<div>
<div><br>
</div>
<div><span
style="color:rgb(34,34,34);font-family:sans-serif;font-size:13px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">$crit
show 1/stats-dump</span><br>
</div>
<div>
<div>{ </div>
<div> "magic": "STATS",</div>
<div> "entries": [</div>
<div> { </div>
<div> "dump": {</div>
<div> "freezing_time": 273,</div>
<div> "frozen_time": 24271,</div>
<div> "memdump_time": 14884,</div>
<div> <span
style="background-color:rgb(255,255,0)">
"memwrite_time": 11743,</span></div>
<div> "pages_scanned": 9566,</div>
<div> "pages_skipped_parent": 0,</div>
<div> <span
style="background-color:rgb(255,255,0)">"pages_written":
2832,</span></div>
<div> "irmap_resolve": 0</div>
<div> }</div>
<div> }</div>
<div> ]</div>
<div>}</div>
</div>
<div><br>
</div>
<div>$crit show 2/stats-dump<br>
</div>
<div>
<div>{ </div>
<div> "magic": "STATS",</div>
<div> "entries": [</div>
<div> { </div>
<div> "dump": {</div>
<div> "freezing_time": 122,</div>
<div> "frozen_time": 55545,</div>
<div> "memdump_time": 49705,</div>
<div> <span
style="background-color:rgb(255,255,0)">"memwrite_time":
45700,</span></div>
<div> "pages_scanned": 5873,</div>
<div> "pages_skipped_parent": 0,</div>
<div> <span
style="background-color:rgb(255,255,0)">"pages_written":
2034,</span></div>
<div> "irmap_resolve": 0</div>
<div> }</div>
<div> }</div>
<div> ]</div>
<div>}</div>
</div>
</div>
<div><br>
</div>
<div>Regards</div>
<div>Ranjan</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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