linux/tools/testing
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
..
crypto/chacha20-s390 tools/testing/crypto: Use vzalloc instead of vmalloc+memset 2022-07-05 14:46:36 +02:00
cxl cxl/hdm: Commit decoder state to hardware 2022-07-25 12:18:07 -07:00
fault-injection
ktest
kunit kunit: tool: Enable virtio/PCI by default on UML 2022-07-08 11:22:29 -06:00
memblock memblock updates for v5.20 2022-08-09 09:48:30 -07:00
nvdimm ndtest: Cleanup all of blk namespace specific code 2022-07-12 17:57:55 -07:00
radix-tree tools: Add kmem_cache_alloc_lru() 2022-04-22 14:24:28 -04:00
scatterlist tools/testing/scatterlist: add missing defines 2022-01-30 09:56:58 +02:00
selftests tracing/user_events: Use bits vs bytes for enabled status page data 2022-09-29 10:17:37 -04:00
vsock af_vsock: SOCK_SEQPACKET broken buffer test 2022-03-18 15:13:19 +00:00