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New test ideas in 'raw' format

{{TableOfContents}}
This page is a dumping ground for ideas for new tests that could be added to Fuego.

Try to keep the tests in categories as shown below.
= general system sanity =
Here are some tests that are good for general system sanity:
 * LTP system call test (already in Fuego)
 * LTP posix test suite (already in Fuego)
 * LSB-FHS - Linux Standard Base Filesystem Hierarchy Standard test
   * See https://www.opengroup.org/testing/lsb-fhs/

= filesystem =
== xfstests ==
xfstests seems to be the new standard for measuring Linux file system
performance.  We should include this test in fuego.

See the following for more information:
 * https://git.kernel.org/cgit/fs/xfs/xfstests-dev.git/
   * clone with 'git clone git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git'
   * I think this is the main upstream repository for xfstests (the repository at http://oss.sgi.com/ has been deprecated)
 * [[https://lwn.net/Articles/592783/|An automated xfstests infrastructure using kvm]]
   * Ted Ts'o's work on automating xfstests
 * [[https://lwn.net/Articles/591985/|Toward better testing]]
   * Dave Chimmer's report on the status of xfstests at an event in 2014



== block layer performance measurement ==
Possibly something simple like 'time dd ...' is useful for catching 
some things (and it's short).

Here is a post from Linus Walleij about using a simple dd to measure block layer
performance.  He found a regression of performance using the MQ block layer
scheduler, using this.

{{{
I got blk-mq running for MMC/SD today and I see a gross performance
regression, from 37 MB/s to 27 MB/s on Ux500 7.38 GB eMMC
with a simple dd test:

BEFORE switching to MQ:

time dd if=/dev/mmcblk3 of=/dev/null bs=1M count=1024
1073741824 bytes (1.0GB) copied, 27.530335 seconds, 37.2MB/s
real    0m 27.54s
user    0m 0.02s
sys     0m 7.56s

AFTER switching to MQ:

time dd if=/dev/mmcblk3 of=/dev/null bs=1M count=1024
1073741824 bytes (1.0GB) copied, 37.170990 seconds, 27.5MB/s
real    0m 37.18s
user    0m 0.02s
sys     0m 7.32s

I will however post my hacky patch as a RFD to the blockdevs and
the block maintainers, along with the numbers and a speculation
about what may be causing it. asynchronous requests (request
pipelining) is one thing, another thing is front/back merge in
the block layer I guess.
}}}

= Bus testing =
== CAN bus testing ==
From agl-discussions list Dec 13: https://lists.linuxfoundation.org/pipermail/automotive-discussions/2016-December/003056.html

I'm interested your benchmark amb can data.
http://docs.automotivelinux.org/docs/apis_services/en/dev/reference/iotbzh2016/signaling/AGL-AppFW-CAN-Signaling-Benchmark.pdf

I want to test amb d-bus can data benchmark, 
So can you share your used "can data" and "amd configuration" ?

This test apparently has a CAN packet injector, written by Cogent.

= year 2038 test =
Arnd Bergmann is a leading kernel expert on this topic.  He gave a talk
at Linaro Connect 2017 in Budapest.  See his session at:
http://connect.linaro.org/resource/bud17/bud17-512/
and an lwn.net report on it here: https://lwn.net/Articles/717076/

There's a page with some very small test snippets at:
http://maul.deepsky.com/~merovech/2038.html


= kernel tests =
== kselftest ==
== kernelci ==
 * build test
 * boot test


= all 0day tests =
Figure out a way to run all existing 0day tests.










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