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Chrismurphy (talk | contribs) (add one more check, service unit file itself) |
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Notice that `/dev/zram0` is present. If you have another swap device present, like in the example above, that is not a problem. | Notice that `/dev/zram0` is present. If you have another swap device present, like in the example above, that is not a problem. | ||
<li> Verify the service unit file is <span style="color:green">active (exited)</span> and sanity checks OK. | |||
<pre> sudo systemctl status swap-create@zram0 | |||
● swap-create@zram0.service - Create swap on /dev/zram0 | |||
Loaded: loaded (/usr/lib/systemd/system/swap-create@.service; static; vendor preset: disabled) | |||
Active: active (exited) since Sun 2020-06-28 19:24:57 MDT; 36s ago | |||
Docs: man:zram-generator(8) | |||
man:zram-generator.conf(5) | |||
Process: 646 ExecStart=/usr/lib/systemd/system-generators/zram-generator --setup-device zram0 (code=exited, status=0/SUCCESS) | |||
Main PID: 646 (code=exited, status=0/SUCCESS) | |||
CPU: 32ms | |||
Jun 28 19:24:57 fmac.local systemd[1]: Starting Create swap on /dev/zram0... | |||
Jun 28 19:24:57 fmac.local zram-generator[648]: Setting up swapspace version 1, size = 3.8 GiB (4105170944 bytes) | |||
Jun 28 19:24:57 fmac.local zram-generator[648]: no label, UUID=03831cdf-96df-4a7a-a6c2-3bc8406f33f3 | |||
Jun 28 19:24:57 fmac.local systemd[1]: Finished Create swap on /dev/zram0. | |||
$ </pre> | |||
</ol> | </ol> | ||
Revision as of 01:30, 29 June 2020
Description
Test installation zram-generator
and zram-generator-defaults
(default enabled)
How to test
- Recommend removing the following packages. The swap-on-zram implementations in those packages have minor conflicts with
zram-generator
, but mostly they'll just contribute to user confusion.sudo dnf remove anaconda zram
- Install
zram-generator
and its defaults package:sudo dnf install zram-generator zram-generator-defaults
- Reboot your machine
- Verify that swap-on-zram is active.
$ zramctl NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT /dev/zram0 lzo-rle 1.4G 4K 74B 12K 2 [SWAP]
Notice that
/dev/zram0
device is present and it's mounted as[SWAP]
. - Verify that
swapon
lists the zram device:$ swapon NAME TYPE SIZE USED PRIO /dev/vda1 partition 500M 0B -2 /dev/zram0 partition 1.4G 0B -3
Notice that
/dev/zram0
is present. If you have another swap device present, like in the example above, that is not a problem. - Verify the service unit file is active (exited) and sanity checks OK.
sudo systemctl status swap-create@zram0 ● swap-create@zram0.service - Create swap on /dev/zram0 Loaded: loaded (/usr/lib/systemd/system/swap-create@.service; static; vendor preset: disabled) Active: active (exited) since Sun 2020-06-28 19:24:57 MDT; 36s ago Docs: man:zram-generator(8) man:zram-generator.conf(5) Process: 646 ExecStart=/usr/lib/systemd/system-generators/zram-generator --setup-device zram0 (code=exited, status=0/SUCCESS) Main PID: 646 (code=exited, status=0/SUCCESS) CPU: 32ms Jun 28 19:24:57 fmac.local systemd[1]: Starting Create swap on /dev/zram0... Jun 28 19:24:57 fmac.local zram-generator[648]: Setting up swapspace version 1, size = 3.8 GiB (4105170944 bytes) Jun 28 19:24:57 fmac.local zram-generator[648]: no label, UUID=03831cdf-96df-4a7a-a6c2-3bc8406f33f3 Jun 28 19:24:57 fmac.local systemd[1]: Finished Create swap on /dev/zram0. $
Expected Results
- The
zram-generator
andzram-generator-defaults
are installed without issues, and the feature is automatically activated after a reboot with the proper size. It should have a size equal to 50% of installed memory, or 4GiB, whichever is smaller.