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{{QA/Test_Case | {{QA/Test_Case | ||
|description=Test installation `zram-generator` and `zram-generator-defaults` (default | |description=Test installation of `zram-generator` and `zram-generator-defaults` (enables swap-on-zram by default) | ||
|actions= | |actions= | ||
<ol> | <ol> | ||
<li> | <li> We recommend to remove 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. | ||
<pre>sudo dnf remove anaconda zram</pre> | <pre>sudo dnf remove anaconda zram</pre> | ||
<li> Install `zram-generator` and | <li> Install `zram-generator` and `zram-generator-defaults`: | ||
<pre>sudo dnf install zram-generator zram-generator-defaults | <pre>sudo dnf install zram-generator zram-generator-defaults | ||
</pre> | </pre> | ||
<li> Reboot your machine | <li> Reboot your machine | ||
<li> Verify that swap-on-zram is active. | <li> Verify that swap-on-zram is active. `zramctl` should list the `/dev/zram0` device and show it mounted as `[SWAP]`. Example: | ||
<pre>$ zramctl | <pre>$ zramctl | ||
NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT | NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT | ||
/dev/zram0 lzo-rle 1.4G 4K 74B 12K 2 [SWAP] | /dev/zram0 lzo-rle 1.4G 4K 74B 12K 2 [SWAP] | ||
</pre> | </pre> | ||
<li> Verify that the size of the device in the output above (`DISKSIZE` column) has a size equal to 50% of installed memory, or 4 GiB, whichever is smaller. | |||
<li> Verify that `swapon` lists the | <li> Verify that `swapon` lists the `/dev/zram0` device. Example: | ||
<pre>$ swapon | <pre>$ swapon | ||
NAME TYPE SIZE USED PRIO | NAME TYPE SIZE USED PRIO | ||
/dev/vda1 partition 500M 0B -2 | /dev/vda1 partition 500M 0B -2 | ||
/dev/zram0 partition 1.4G 0B | /dev/zram0 partition 1.4G 0B 100 | ||
</pre> | </pre> | ||
If you have another swap device present, like in the example above, that is not a problem. Unless you configured your swap priority manually, your pre-existing swap device should have a lower priority than the new `/dev/zram0` device. | |||
<li> Verify the service unit file is marked as "<span style="color:green">active (exited)</span>" and its output looks OK with no errors or issues listed. | |||
<pre>$ sudo systemctl status swap-create@zram0.service | |||
● 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> | ||
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}} | }} | ||
[[Category:Test Days Test Cases]] | [[Category:Test Days Test Cases]] [[Category:Package_rust-zram-generator_test_cases]] | ||
Latest revision as of 07:03, 8 July 2020
Description
Test installation of zram-generator and zram-generator-defaults (enables swap-on-zram by default)
How to test
- We recommend to remove 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-generatorandzram-generator-defaults:sudo dnf install zram-generator zram-generator-defaults
- Reboot your machine
- Verify that swap-on-zram is active.
zramctlshould list the/dev/zram0device and show it mounted as[SWAP]. Example:$ zramctl NAME ALGORITHM DISKSIZE DATA COMPR TOTAL STREAMS MOUNTPOINT /dev/zram0 lzo-rle 1.4G 4K 74B 12K 2 [SWAP]
- Verify that the size of the device in the output above (
DISKSIZEcolumn) has a size equal to 50% of installed memory, or 4 GiB, whichever is smaller. - Verify that
swaponlists the/dev/zram0device. Example:$ swapon NAME TYPE SIZE USED PRIO /dev/vda1 partition 500M 0B -2 /dev/zram0 partition 1.4G 0B 100
If you have another swap device present, like in the example above, that is not a problem. Unless you configured your swap priority manually, your pre-existing swap device should have a lower priority than the new
/dev/zram0device. - Verify the service unit file is marked as "active (exited)" and its output looks OK with no errors or issues listed.
$ sudo systemctl status swap-create@zram0.service ● 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-generatorandzram-generator-defaultsare 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.