[Bug 777295] Re: nepomukservicestub eating 12% RAM
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Fri Apr 25 23:26:58 UTC 2014
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On 2011-02-07T23:18:09+00:00 Domlyons-n wrote:
Version: unspecified (using KDE 4.6.0)
OS: Linux
At the moment a nepumikservices process eats more than 7 GB RAM. This
doesn't happen every day but every few days.
I can't imagine how this can happen as nepomuk is restricted to 256 MB
in systemsettings and soprano-virtuoso.db is "only" about nearly 900 MB.
What is noticeable:
* Internet access was broken for more than half an hour - could that
have a (crazy) impact? I guess it at least should not...
* After connection was there again Akonadi neither reconnected GMail
IMAP nor Kolab disconnected IMAP - but I guess that shouldn't do Nepomuk
any harm
* Today Nepomuk backup was scheduled at 21.00. I didn't recognize if excessive RAM usage just started that time... But else than Bug 265510 ("Nepomuk backup eating too much memory when creating backup file") I don't seem to have a big temp-file.
But all that ps can say it seems to be a problem with the backup (see below)
$ ps -AF | grep nepomuk
dominic 2081 1 0 52815 9432 0 18:41 ? 00:00:00 /usr/bin/nepomukserver
dominic 2086 2081 12 190888 139352 3 18:41 ? 00:32:43 /usr/bin/nepomukservicestub nepomukstorage
dominic 2103 2017 0 74585 22008 3 18:41 ? 00:00:06 /usr/bin/akonadi_nepomuk_calendar_feeder --identifier akonadi_nepomuk_calendar_feeder
dominic 2104 2017 0 73921 22088 2 18:41 ? 00:00:06 /usr/bin/akonadi_nepomuk_contact_feeder --identifier akonadi_nepomuk_contact_feeder
dominic 2105 2017 0 110529 32516 2 18:41 ? 00:00:09 /usr/bin/akonadi_nepomuk_email_feeder --identifier akonadi_nepomuk_email_feeder
dominic 2394 2081 0 91383 21996 0 18:42 ? 00:00:09 /usr/bin/nepomukservicestub nepomukqueryservice
dominic 2395 2081 0 109306 26128 3 18:42 ? 00:00:23 /usr/bin/nepomukservicestub nepomukfilewatch
dominic 2400 2081 12 1911954 7253580 3 18:42 ? 00:32:17 /usr/bin/nepomukservicestub nepomukbackupsync
dominic 2402 2081 0 123711 32952 5 18:42 ? 00:00:08 /usr/bin/nepomukservicestub digikamnepomukservice
dominic 2403 2081 0 141079 51976 5 18:42 ? 00:01:38 /usr/bin/nepomukservicestub nepomukstrigiservice
dominic 2404 2081 0 89432 22536 0 18:42 ? 00:00:08 /usr/bin/nepomukservicestub nepomukremovablestorageservice
dominic 5296 2145 0 2595 852 1 23:07 pts/0 00:00:00 grep --color=auto nepomuk
And that's what ksysguard says:
Process 2400 - nepomukservices
Summary
--------------------------------------------------
The process nepomukservices (with pid 2400) is using approximately 6.9 GB of memory.
It is using 6.9 GB privately, and a further 17.3 MB that is, or could be, shared with other programs.
Dividing up the shared memory between all the processes sharing that memory we get a reduced shared memory usage of 346.0 KB. Adding that to the private usage, we get the above mentioned total memory footprint of 6.9 GB.
4.0 KB is swapped out to disk, probably due to a low amount of available memory left.
Library Usage
--------------------------------------------------
The memory usage of a process is found by adding up the memory usage of each of its libraries, plus the process's own heap, stack and any other mappings, plus the stack of its 2 threads.
Private
--------------------------------------------------
7233680 KB [heap]
284 KB /usr/lib/libQtGui.so.4.7.0
204 KB /usr/lib/libkdeui.so.5.6.0
132 KB /usr/lib/libkdecore.so.5.6.0
116 KB /usr/lib/kde4/nepomukbackupsync.so
Shared
--------------------------------------------------
2648 KB /usr/lib/libQtGui.so.4.7.0
1760 KB /usr/lib/libkdeui.so.5.6.0
1560 KB /usr/lib/libkdecore.so.5.6.0
1396 KB /usr/lib/libQtCore.so.4.7.0
704 KB /usr/lib/libkio.so.5.6.0
Totals
--------------------------------------------------
Private 7235992 KB (= 188 KB clean + 7235804 KB dirty)
Shared 17724 KB (= 17724 KB clean + 0 KB dirty)
Rss 7253716 KB (= Private + Shared)
Pss 7236338 KB (= Private + Shared/Number of Processes)
Swap 4 KB
Reproducible: Sometimes
Steps to Reproduce:
That's a really good question...
Reply at: https://bugs.launchpad.net/ubuntu/+source/kdebase-
runtime/+bug/777295/comments/0
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On 2011-02-08T00:44:17+00:00 Domlyons-n wrote:
> Steps to Reproduce:
> That's a really good question...
Well, maybe I wrote this a bit too quick...
I've started a manual nepomuk backup. It looked really fine for over an
hour (seemed to be slow but low RAM usage) until nearly at the end. In
the last few minutes a huge amount of heap memory was reserved (again
over 7 GB) and was not given free after the backup was finished.
The backup itself is quite small, about 65 MB compressed and less than
750 MB uncompressed.
So I assume this is a duplicate of Bug 265510 or the other way round...
The same information as before, but a bit shortened:
$ ps -FA | grep nepomuk
[...]
dominic 2403 2081 0 141079 932 5 Feb07 ? 00:01:38 /usr/bin/nepomukservicestub nepomukstrigiservice
dominic 2404 2081 0 89432 788 3 Feb07 ? 00:00:08 /usr/bin/nepomukservicestub nepomukremovablestorageservice
dominic 5347 2081 38 1912516 7075316 5 Feb07 ? 00:29:18 /usr/bin/nepomukservicestub nepomukbackupsync
[...]
Process 5347 - nepomukservices
Summary
--------------------------------------------------
The process nepomukservices (with pid 5347) is using approximately 6.7 GB of memory.
It is using 6.7 GB privately, and a further 596.0 KB that is, or could be, shared with other programs.
Dividing up the shared memory between all the processes sharing that memory we get a reduced shared memory usage of 2.0 KB. Adding that to the private usage, we get the above mentioned total memory footprint of 6.7 GB.
159.3 MB is swapped out to disk, probably due to a low amount of available memory left.
[...]
Private
--------------------------------------------------
7074816 KB [heap]
36 KB /usr/lib/libQtGui.so.4.7.0
[...]
Totals
--------------------------------------------------
Private 7074936 KB (= 200 KB clean + 7074736 KB dirty)
Shared 596 KB (= 596 KB clean + 0 KB dirty)
Rss 7075532 KB (= Private + Shared)
Pss 7074938 KB (= Private + Shared/Number of Processes)
Swap 163088 KB
Reply at: https://bugs.launchpad.net/ubuntu/+source/kdebase-
runtime/+bug/777295/comments/1
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On 2011-03-07T23:09:46+00:00 Domlyons-n wrote:
Still the same in KDE 4.6.1
Reply at: https://bugs.launchpad.net/ubuntu/+source/kdebase-
runtime/+bug/777295/comments/2
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On 2011-04-21T09:32:56+00:00 Nico-kruber wrote:
same here, virtuoso-t using 760MB RAM although set not to use more than
256MB
I had a lot of files that strigi had to analyse, but strigi is currently
disabled - didn't change the RAM usage though :(
Reply at: https://bugs.launchpad.net/ubuntu/+source/kdebase-
runtime/+bug/777295/comments/3
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On 2011-05-04T20:13:10+00:00 PascalCavy wrote:
Created attachment 59626
htop showing nepomukservicestub eating memory
Reply at: https://bugs.launchpad.net/ubuntu/+source/kdebase-
runtime/+bug/777295/comments/6
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On 2011-05-31T21:51:46+00:00 Jan Schnackenberg wrote:
I'm seeing the same thing here.
The process "/usr/bin/nepomukservicestub nepomukbackupsync" uses 1.7GB
private memory. The private heap being 1772416KB.
Ok, I've still got enough memory left, but this is kind of ridiculous
for something I really hardly ever use.
Reply at: https://bugs.launchpad.net/ubuntu/+source/kdebase-
runtime/+bug/777295/comments/7
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On 2011-06-13T23:38:44+00:00 Domlyons-n wrote:
*** This bug has been confirmed by popular vote. ***
Reply at: https://bugs.launchpad.net/ubuntu/+source/kdebase-
runtime/+bug/777295/comments/8
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On 2011-06-13T23:56:23+00:00 Domlyons-n wrote:
Having this problem every monday (this time eating more than 8 GB RAM
over a long time) im pretty sure this bug and #265510 are duplicates.
*** This bug has been marked as a duplicate of bug 265510 ***
Reply at: https://bugs.launchpad.net/ubuntu/+source/kdebase-
runtime/+bug/777295/comments/9
** Changed in: kde-baseapps
Status: Incomplete => Invalid
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nepomukservicestub eating 12% RAM
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