mirror-linux/tools
Nícolas F. R. A. Prado 6154fb9c21 kselftest: dt: Stop relying on dirname to improve performance
When walking directory trees, instead of looking for specific files and
running dirname to get the parent folder, traverse all folders and
ignore the ones not containing the desired files. This avoids the need
to call dirname inside the loop, which drastically decreases run time:
Running locally on a mt8192-asurada-spherion, which reports 160 test
cases, has gone from 5.5s to 2.9s, while running remotely with an
nfsroot has gone from 13.5s to 5.5s.

This change has a side-effect, which is that the root DT node now
also shows in the output, even though it isn't expected to bind to a
driver. However there shouldn't be a matching driver for the board
compatible, so the end result will be just an extra skipped test:

ok 1 / # SKIP

Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/all/310391e8-fdf2-4c2f-a680-7744eb685177@sirena.org.uk
Fixes: 14571ab1ad ("kselftest: Add new test for detecting unprobed Devicetree devices")
Tested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240122-dt-kselftest-dirname-perf-fix-v2-1-f1630532fd38@collabora.com
Signed-off-by: Rob Herring <robh@kernel.org>
2024-01-22 09:39:58 -06:00
..
accounting
arch ARM: 2023-11-02 15:45:15 -10:00
bootconfig
bpf bpftool: Extend net dump with netkit progs 2023-10-24 16:07:32 -07:00
build perf tools fixes for v6.6: 2nd batch 2023-10-30 13:46:27 -07:00
certs
cgroup
counter
crypto/ccp
debugging
edid
firewire
firmware
gpio
hv
iio
include perf tools changes for v6.7 2023-11-03 08:17:38 -10:00
kvm/kvm_stat
laptop
leds
lib perf tools changes for v6.7 2023-11-03 08:17:38 -10:00
memory-model
mm tools/mm: update the usage output to be more organized 2023-10-18 14:34:19 -07:00
net/ynl nfsd: regenerate user space parsers after ynl-gen changes 2023-11-06 09:03:46 +00:00
objtool * Refactor and clean up TDX hypercall/module call infrastructure 2023-11-01 10:28:32 -10:00
pci
pcmcia
perf perf tools changes for v6.7 2023-11-03 08:17:38 -10:00
power Merge branch 'pm-tools' 2023-11-07 20:46:13 +01:00
rcu
scripts tools/build: Fix -s detection code in tools/scripts/Makefile.include 2023-10-18 15:29:47 -07:00
spi
testing kselftest: dt: Stop relying on dirname to improve performance 2024-01-22 09:39:58 -06:00
thermal tools/thermal: Remove unused 'mds' and 'nrhandler' variables 2023-10-15 23:40:10 +02:00
time
tracing rtla: Fix uninitialized variable found 2023-10-30 19:00:12 +01:00
usb
verification verification/dot2k: Delete duplicate imports 2023-10-30 16:59:12 +01:00
virtio tools/virtio: Add dma sync api for virtio test 2023-10-16 05:32:23 -04:00
wmi
workqueue
Makefile