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.