linux/tools
Daniel Bristot de Oliveira e8c44d3b71 rtla/timerlat: Do not stop user-space if a cpu is offline
If no CPU list is passed, timerlat in user-space will dispatch
one thread per sysconf(_SC_NPROCESSORS_CONF). However, not all
CPU might be available, for instance, if HT is disabled.

Currently, rtla timerlat is stopping the session if an user-space
thread cannot set affinity to a CPU, or if a running user-space
thread is killed. However, this is too restrictive.

So, reduce the error to a debug message, and rtla timerlat run as
long as there is at least one user-space thread alive.

Link: https://lore.kernel.org/lkml/59cf2c882900ab7de91c6ee33b382ac7fa6b4ed0.1694781909.git.bristot@kernel.org

Fixes: cdca4f4e5e ("rtla/timerlat_top: Add timerlat user-space support")
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2023-09-22 14:43:46 +02:00
..
accounting
arch ARM: 2023-09-07 13:52:20 -07:00
bootconfig
bpf bpftool: Fix build warnings with -Wtype-limits 2023-08-30 08:39:00 +02:00
build perf tools changes for v6.6: 2023-09-09 20:06:17 -07:00
certs
cgroup iocost_monitor: improve it by adding iocg wait_ms 2023-08-08 15:43:03 -06:00
counter tools/counter: Makefile: Replace rmdir by rm to avoid make,clean failure 2023-07-24 10:29:52 -04:00
crypto/ccp crypto: ccp - Add unit tests for dynamic boost control 2023-07-20 22:15:12 +12:00
debugging
edid
firewire
firmware
gpio
hv vmbus_testing: fix wrong python syntax for integer value comparison 2023-07-23 23:19:30 +00:00
iio tools: iio: iio_generic_buffer: Fix some integer type and calculation 2023-07-29 15:59:20 +01:00
include Networking changes for 6.6. 2023-08-29 11:33:01 -07:00
kvm/kvm_stat
laptop
leds
lib perf tools changes for v6.6: 2023-09-09 20:06:17 -07:00
memory-model
mm tools/mm: fix undefined reference to pthread_once 2023-09-05 10:13:45 -07:00
net/ynl tools/net/ynl: Add support for create flags 2023-08-27 17:17:10 -07:00
objtool objtool/x86: Fixup frame-pointer vs rethunk 2023-08-17 00:44:35 +02:00
pci
pcmcia
perf perf tools changes for v6.6: 2023-09-09 20:06:17 -07:00
power More power management updates for 6.6-rc1 2023-09-04 15:21:55 -07:00
rcu
scripts tools build: Add 3-component logical version comparators 2023-08-03 16:59:40 -03:00
spi
testing XArray/IDA updates for 6.6 2023-09-08 21:46:26 -07:00
thermal
time
tracing rtla/timerlat: Do not stop user-space if a cpu is offline 2023-09-22 14:43:46 +02:00
usb
verification
virtio tools/virtio: fix build break for aarch64 2023-06-27 10:47:08 -04:00
wmi
workqueue workqueue: Implement non-strict affinity scope for unbound workqueues 2023-08-07 15:57:25 -10:00
Makefile