EXT4 In Linux 5.6 To See Big Write Performance Boost For Direct I/O

[Azrael5]

you can check if zram is being used by running cat /proc/swaps

many thanks, it shows swap file

[phuclv]

many thanks, it shows swap file

it should show zram devices like /dev/zram0 /dev/zram1...

[Azrael5]

it should show zram devices like /dev/zram0 /dev/zram1...

Yes, I've tested Lubuntu and 4 zram strings appears. Do you think that zram is useful when 8GB of RAM are present?

[phuclv]

Yes, I've tested Lubuntu and 4 zram strings appears. Do you think that zram is useful when 8GB of RAM are present?

yes, just like why you still need a swap file/partition even though you have plenty of RAM. But zram is much better in that when you aren't low on memory, it consumes almost zero memory, whereas with a swap file/partition you lose GBs of disk space forever. zram only actually uses memory when pages are stored into it