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Description of problem:
Huge leaks in caribou (and nautilus) when adding/removing block devices.
I was testing creating many LVs on a system with running gnome session. I expected memory to be stressed a bit but did not expect caribou (and nautilus) consuming 2.86GB (and 6.46GB) or RAM.
Until now I did not know there is a caribou. Now I do know, but do not understand why a "text entry and UI navigation" would have anything to do with disks. But I am sure it should not consume nearly 3GB of RAM.
Version-Release number of selected component (if applicable):
Running RHEL7.2:
caribou-0.4.16-1.el7.x86_64
nautilus-3.14.3-7.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1. for i in $(seq 1500); do lvcreate -kn -s $VG/$THINLV; done
Actual results:
Wasted 9+ GB or RAM.
Expected results:
There should be some saner limit what the application consumes.
Especially when doing "nothing".
Additional info:
> top - 13:22:11 up 26 days, 2:29, 8 users, load average: 0.18, 0.29, 0.37
> Tasks: 3776 total, 1 running, 3770 sleeping, 5 stopped, 0 zombie
> %Cpu(s): 27.9 us, 4.3 sy, 0.2 ni, 67.6 id, 0.1 wa, 0.0 hi, 0.0 si, 0.0 st
> KiB Mem : 15889328 total, 165116 free, 14954932 used, 769280 buff/cache
> KiB Swap: 8388604 total, 1828152 free, 6560452 used. 204764 avail Mem
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 19891 mrtianc 20 0 8001360 6.462g 1248 S 0.0 42.6 24:14.70 nautilus
> 19721 mrtianc 20 0 3839744 2.866g 904 S 0.0 18.9 14:04.27 caribou
> 25805 mcsontos 20 0 2028732 658272 15216 S 0.0 4.1 9:00.27 firefox
Even deactivating LVs causes both nautilus and caribou leaking a lot.
After restarting gnome, the programs were fine, until I started manipulating the LVs.
After deactivating 1000LVs it now looks like this:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
28616 mrtianc 20 0 2616316 1.698g 16968 S 0.0 11.2 5:59.90 nautilus
20996 mcsontos 20 0 2597992 871032 31120 S 0.7 5.5 206:29.34 firefox
27886 mrtianc 20 0 1314972 751520 5044 S 0.0 4.7 2:58.94 caribou
Nautilus and caribou were running at full speed for 6 minutes, nautilus consuming 100% CPU, and caribou "only" 50%.
Reactivating all these 1000 LVs gets both applications running again.
The fact deactivating devices is causing memory going up suggests there is a huge leak - over 1MB in nautilus and 0.7MB in caribou for each activated/deactivated LV.
Activating the volumes back the leaks are much worse: 4M in nautilus and 1.8M in caribou per LV.
> 28616 mrtianc 20 0 6490804 5.334g 3052 S 0.0 35.2 20:20.58 nautilus
> 27886 mrtianc 20 0 3109652 2.407g 908 S 0.0 15.9 10:06.78 caribou
I might be having a similar/related problem here although the trigger is a little different. I added just one LVM and saw the caribou process eating around 80% CPU while I was reading/writing that LVM. This might be coincident but the caribous process slowly stopped hogging CPU after the read/write stopped. Also I didn't see a memory leak, it was just hogging CPU and slowing down everything else.
Description of problem: Huge leaks in caribou (and nautilus) when adding/removing block devices. I was testing creating many LVs on a system with running gnome session. I expected memory to be stressed a bit but did not expect caribou (and nautilus) consuming 2.86GB (and 6.46GB) or RAM. Until now I did not know there is a caribou. Now I do know, but do not understand why a "text entry and UI navigation" would have anything to do with disks. But I am sure it should not consume nearly 3GB of RAM. Version-Release number of selected component (if applicable): Running RHEL7.2: caribou-0.4.16-1.el7.x86_64 nautilus-3.14.3-7.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. for i in $(seq 1500); do lvcreate -kn -s $VG/$THINLV; done Actual results: Wasted 9+ GB or RAM. Expected results: There should be some saner limit what the application consumes. Especially when doing "nothing". Additional info: > top - 13:22:11 up 26 days, 2:29, 8 users, load average: 0.18, 0.29, 0.37 > Tasks: 3776 total, 1 running, 3770 sleeping, 5 stopped, 0 zombie > %Cpu(s): 27.9 us, 4.3 sy, 0.2 ni, 67.6 id, 0.1 wa, 0.0 hi, 0.0 si, 0.0 st > KiB Mem : 15889328 total, 165116 free, 14954932 used, 769280 buff/cache > KiB Swap: 8388604 total, 1828152 free, 6560452 used. 204764 avail Mem > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 19891 mrtianc 20 0 8001360 6.462g 1248 S 0.0 42.6 24:14.70 nautilus > 19721 mrtianc 20 0 3839744 2.866g 904 S 0.0 18.9 14:04.27 caribou > 25805 mcsontos 20 0 2028732 658272 15216 S 0.0 4.1 9:00.27 firefox Even deactivating LVs causes both nautilus and caribou leaking a lot. After restarting gnome, the programs were fine, until I started manipulating the LVs. After deactivating 1000LVs it now looks like this: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 28616 mrtianc 20 0 2616316 1.698g 16968 S 0.0 11.2 5:59.90 nautilus 20996 mcsontos 20 0 2597992 871032 31120 S 0.7 5.5 206:29.34 firefox 27886 mrtianc 20 0 1314972 751520 5044 S 0.0 4.7 2:58.94 caribou Nautilus and caribou were running at full speed for 6 minutes, nautilus consuming 100% CPU, and caribou "only" 50%. Reactivating all these 1000 LVs gets both applications running again. The fact deactivating devices is causing memory going up suggests there is a huge leak - over 1MB in nautilus and 0.7MB in caribou for each activated/deactivated LV.