Am 22.04.2014 19:17, schrieb Jóhann B. Guðmundsson:
> On 04/22/2014 01:38 PM, Josh Boyer wrote:
>> I have a rawhide VM here too, it has nothing related to zram
>> configuration, and the module isn't loaded.
>
> Nor should it be it's going to take us sometime to implement this correctly into the
> distribution and arguably that module should be packaged seperatly in a zram package
why do you need a sub-package?
if it is not loaded all is fine
today i started using zram on testing and development virtual machines
maybe that it was loaded automatically is already fixed, the first
testing was a realy Rawhide 3.15 kernel and after that i blacklisted it
but for now still keep the "rmmod" before re-load the module
below you have all needed for zram working and i have currently
besides the F20 development-servers a Rawhide VM with 256 MB
RAM and with zram it survives even "yum reinstall \*"
______________________________________________________________
[root@testserver:~]$ cat /usr/lib/systemd/system/zram.service
[Unit]
Description=Enable compressed swap in memory using zram
After=multi-user.target
[Service]
RemainAfterExit=yes
ExecStart=/usr/sbin/zramstart
ExecStop=/usr/sbin/zramstop
Type=oneshot
[Install]
WantedBy=multi-user.target
______________________________________________________________
[root@testserver:~]$ cat /etc/sysconfig/zram
FACTOR=25
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[root@testserver:~]$ cat /etc/modprobe.d/disable-zram.conf
blacklist zram
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[root@testserver:~]$ cat /usr/sbin/zramstart
#!/usr/bin/bash
num_cpus=$(grep -c processor /proc/cpuinfo)
[ "$num_cpus" != 0 ] || num_cpus=1
last_cpu=$((num_cpus - 1))
FACTOR=20
[ -f /etc/sysconfig/zram ] && source /etc/sysconfig/zram || true
factor=$FACTOR
memtotal=$(grep MemTotal /proc/meminfo | awk ' { print $2 } ')
mem_by_cpu=$(($memtotal/$num_cpus*$factor/100*1024))
/usr/sbin/rmmod zram 2> /dev/null > /dev/null
/usr/sbin/modprobe -q zram num_devices=$num_cpus 2> /dev/null > /dev/null
for i in $(seq 0 $last_cpu); do
echo $mem_by_cpu > /sys/block/zram$i/disksize
/usr/sbin/mkswap /dev/zram$i
/usr/sbin/swapon -p 100 /dev/zram$i
done
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[root@testserver:~]$ cat /usr/sbin/zramstop
#!/usr/bin/bash
for i in $(grep '^/dev/zram' /proc/swaps | awk '{ print $1 }'); do
/usr/sbin/swapoff "$i"
done
if grep -q "^zram " /proc/modules; then
sleep 1
/usr/sbin/rmmod zram
fi
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