Re: does zram in fedora need any configuration

[Reindl Harald]

mailing-list stripped the 3.9 KB src.rpm :-(
http://access.thelounge.net/harry/zram-1.0.0-1.fc20.20140327.rh.src.rpm

Am 27.03.2014 18:01, schrieb Reindl Harald:
>  answered that myself
>  
>  * it needs configuration
>  * src.rpm built on F20 and tested on Rawhide attached
>  * that below is a VM with 2 virtual CPU cores
>  * configuration is 20% of RAM and one zram-device per core
>  
>  [root@rawhide ~]# free
>               total       used       free     shared    buffers     cached
>  Mem:           742        136        606          4          7         69
>  -/+ buffers/cache:         59        683
>  Swap:          148          0        148
>  
>  
>  [root@rawhide ~]# systemctl start zram.service
>  [root@rawhide ~]# dmesg
>  [  290.085329] zram: Created 2 device(s) ...
>  [  290.092406] Adding 76004k swap on /dev/zram0.  Priority:100 extents:1 across:76004k
> SSFS
>  [  290.096359] Adding 76004k swap on /dev/zram1.  Priority:100 extents:1 across:76004k
> SSFS
>  [root@rawhide ~]# htop
>  [root@rawhide ~]# systemctl list-units | grep zram
>  sys-devices-virtual-block-zram0.device                                                   
>        loaded active
>  plugged   /sys/devices/virtual/block/zram0
>  sys-devices-virtual-block-zram1.device                                                   
>        loaded active
>  plugged   /sys/devices/virtual/block/zram1
>  zram.service                                                                             
>        loaded active
>  exited    Enable compressed swap in memory using zram
>  dev-zram0.swap                                                                           
>        loaded active
>  active    /dev/zram0
>  dev-zram1.swap                                                                           
>        loaded active
>  active    /dev/zram1
>  [root@rawhide ~]#
>  
>  Am 27.03.2014 17:18, schrieb Reindl Harald:
> > since 3.14 is not that far away zram becomes interesting
> >
> > the article below maybe outdated, on a rawhide-VM exists
> > /dev/zram0 as well as a implicit systemd-unit, well
> > does that mean it is automagically configured and if
> > that is the case does systemd < 212 that also or is
> > there handwork needed for the time F19/F20 get rebased
> > to kernel 3.14?
> >
> > [root@rawhide ~]# systemctl list-units | grep zram
> > sys-devices-virtual-block-zram0.device loaded active plugged
> /sys/devices/virtual/block/zram0
> >
> > http://mystilleef.blogspot.co.at/2011/10/enable-zram-in-fedora.html