linux/tools
Yosry Ahmed e0401dce5e selftests/bpf: Simplify cgroup_hierarchical_stats selftest
The cgroup_hierarchical_stats selftest is complicated. It has to be,
because it tests an entire workflow of recording, aggregating, and
dumping cgroup stats. However, some of the complexity is unnecessary.
The test now enables the memory controller in a cgroup hierarchy, invokes
reclaim, measure reclaim time, THEN uses that reclaim time to test the
stats collection and aggregation. We don't need to use such a
complicated stat, as the context in which the stat is collected is
orthogonal.

Simplify the test by using a simple stat instead of reclaim time, the
total number of times a process has ever entered a cgroup. This makes
the test simpler and removes the dependency on the memory controller and
the memory reclaim interface.

Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: KP Singh <kpsingh@kernel.org>
Link: https://lore.kernel.org/bpf/20220919175330.890793-1-yosryahmed@google.com
2022-09-23 13:59:08 -07:00
..
accounting delayacct: remove some unused variables 2022-06-16 19:58:21 -07:00
arch tools kvm headers arm64: Update KVM header from the kernel sources 2022-08-27 11:55:16 -03:00
bootconfig
bpf bpf: Define new BPF_MAP_TYPE_USER_RINGBUF map type 2022-09-21 16:24:17 -07:00
build tools build: Switch to new openssl API for test-libcrypto 2022-08-10 10:44:02 -03:00
certs
cgroup tools: add memcg_shrinker.py 2022-07-03 18:08:40 -07:00
counter
debugging
edid
firewire
firmware
gpio
hv
iio
include bpf: Add bpf_user_ringbuf_drain() helper 2022-09-21 16:24:58 -07:00
io_uring
kvm/kvm_stat tools/kvm_stat: fix display of error when multiple processes are found 2022-06-15 08:14:20 -04:00
laptop
leds
lib libbpf: Support raw BTF placed in the default search path 2022-09-21 17:26:16 -07:00
memory-model
objtool ftrace: Add HAVE_DYNAMIC_FTRACE_NO_PATCHABLE 2022-09-16 22:16:48 +02:00
pci
pcmcia
perf perf stat: Capitalize topdown metrics' names 2022-08-27 11:55:17 -03:00
power platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
rcu
scripts
spi spi: spidev_test: Warn when the mode is not the requested mode 2022-06-13 15:56:03 +01:00
testing selftests/bpf: Simplify cgroup_hierarchical_stats selftest 2022-09-23 13:59:08 -07:00
thermal tools/thermal: Fix possible path truncations 2022-08-03 19:28:46 +02:00
time
tracing rtla: Consolidate and show all necessary libraries that failed for building 2022-08-10 12:03:02 -04:00
usb tools: usb: testusb: Add super-plus speed reporting 2022-07-08 14:54:49 +02:00
verification rv/monitor: Add the wwnr monitor 2022-07-30 14:01:30 -04:00
virtio tools/virtio: fix build 2022-08-11 04:26:07 -04:00
vm - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
wmi
Makefile tools/nolibc: make the default target build the headers 2022-06-20 09:43:19 -07:00