[alsa-utils][PATCH 00/14] axfer: reduce test time

[Jaroslav Kysela]

Dne 11. 03. 21 v 6:21 Takashi Sakamoto napsal(a):
> Hi,
> 
> The axfer in alsa-utils has test programs for internal modules and
> overall time to execute them takes much. The issue is filing in
> github repository[1]. It comes from three causes:
> 
> 1. file I/O operations are done in file system for actual storage
> 2. Some cases operate much audio data frames (over 4MB, approx.)
> 3. much test iteration count (so simple...)
> 
> This patchset uses shm by memfd_create(2) for the cause 1. In addition,
> the number of maximum audio data frame to test is reduced as well as the
> number of samples per frame.
> 
> I got benchmark with berow machine environment.
> 
>  * AMD Ryzen 5 2400G
>  * memory total 30823852 KB
>  * linux-image-5.8.0-44-generic on Ubuntu 20.04 amd64
>  * ext4 on SATA SSD
> 
> As a result:
>                    |container|  mapper |
>                    |   test  |   test  |
> ================== | ======= | ======= |
> Current            | 112 min |   5 min |
> +shm               |  58 min |  50 sec |
> +maximum reduction |  38 min |    -    |
> +iter reduction    |   4 min |    -    |
> 
> In my opinion, the issue comes from package build server in each
> distribution. 5 min for test execution is not so worse time.
> 
> Finally, test programs run on shm and commit c3f2344b7209 is reverted[1]
> since it's useless now.

Applied all patches except the double revert. Thank you.

					Jaroslav

-- 
Jaroslav Kysela <perex at perex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.