cloud / zram

Reindl Harald h.reindl at thelounge.net
Sat Mar 8 18:26:04 UTC 2014


in case of cloud / virtualization i wonder what is the
state of "zram" in the Fedora Kernel, zswap is available
and can be enabled with "zswap.enabled=1" as boot paran

but zswap is more for a overcommited host to avoid disk paging

zram IMHO would be interesting for the guest systems and
both combined may lead to run *a lot* of more virtual
machines on the same host
____________________________________________________________

[root at srv-rhsoft:~]$ cat /boot/config-3.13.6-200.fc20.x86_64 | grep -i zswap
CONFIG_ZSWAP=y

[root at srv-rhsoft:~]$ cat /boot/config-3.13.6-200.fc20.x86_64 | grep -i zram
[root at srv-rhsoft:~]$ locate zram
/usr/src/kernels/3.13.6-200.fc20.x86_64/drivers/staging/zram
/usr/src/kernels/3.13.6-200.fc20.x86_64/drivers/staging/zram/Kconfig
/usr/src/kernels/3.13.6-200.fc20.x86_64/drivers/staging/zram/Makefile




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