iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
39d6d08b2e
linux/tools
History
Beau Belgrave 39d6d08b2e tracing/user_events: Use bits vs bytes for enabled status page data 
User processes may require many events and when they do the cache
performance of a byte index status check is less ideal than a bit index.
The previous event limit per-page was 4096, the new limit is 32,768.

This change adds a bitwise index to the user_reg struct. Programs check
that the bit at status_bit has a bit set within the status page(s).

Link: https://lkml.kernel.org/r/20220728233309.1896-6-beaub@linux.microsoft.com
Link: https://lore.kernel.org/all/2059213643.196683.1648499088753.JavaMail.zimbra@efficios.com/

Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-09-29 10:17:37 -04:00
..
accounting delayacct: remove some unused variables 2022-06-16 19:58:21 -07:00
arch tools headers cpufeatures: Sync with the kernel sources 2022-09-21 16:08:00 -03:00
bootconfig
bpf bpftool: Complete libbfd feature detection 2022-08-10 10:44:01 -03:00
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 tools: Add new "test" taint to kernel-chktaint 2022-09-07 14:51:12 -06:00
edid
firewire
firmware
gpio
hv tools: hv: kvp: remove unnecessary (void*) conversions 2022-09-05 16:55:20 +00:00
iio
include tools/include/uapi: Fix <asm/errno.h> for parisc and xtensa 2022-09-13 14:04:35 +02:00
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 libperf evlist: Fix polling of system-wide events 2022-09-21 16:08:00 -03:00
memory-model
objtool Misc fixes: 2022-08-28 10:10:23 -07:00
pci
pcmcia
perf perf tools: Honor namespace when synthesizing build-ids 2022-09-21 16:08:00 -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 tracing/user_events: Use bits vs bytes for enabled status page data 2022-09-29 10:17:37 -04:00
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 __init/__exit annotations to module init/exit funcs 2022-09-26 18:10:51 -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