linux/Documentation/userspace-api
Peter Zijlstra 21c0e92d06 rseq: Lower default slice extension
Change the minimum slice extension to 5 usec.

Since slice_test selftest reaches a staggering ~350 nsec extension:

Task: slice_test    Mean: 350.266 ns
  Latency (us)    | Count
  ------------------------------
  EXPIRED         | 238
  0 us            | 143189
  1 us            | 167
  2 us            | 26
  3 us            | 11
  4 us            | 28
  5 us            | 31
  6 us            | 22
  7 us            | 23
  8 us            | 32
  9 us            | 16
  10 us           | 35

Lower the minimal (and default) value to 5 usecs -- which is still massive.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/20260121143208.073200729@infradead.org
2026-01-22 11:11:20 +01:00
..
accelerators Documentation: ocxl.rst: Update consortium site 2025-03-12 16:26:45 -06:00
ebpf docs/bpf: Add bpf() syscall command reference 2021-03-04 18:39:46 -08:00
fwctl docs: Improve grammar in Userspace API/fwctl 2025-06-09 15:11:46 -06:00
gpio Documentation: gpio: Reconfiguration with unset direction (uAPI v2) 2024-07-01 09:38:45 +02:00
ioctl liveupdate: luo_core: Live Update Orchestrator 2025-11-27 14:24:37 -08:00
media Documentation: media: mali-c55: Document the mali-c55 parameter setting 2025-11-14 15:48:49 +01:00
netlink docs: netlink: Couple of intro-specs documentation fixes 2025-11-06 14:50:59 -08:00
check_exec.rst security: Add EXEC_RESTRICT_FILE and EXEC_DENY_INTERACTIVE securebits 2024-12-18 17:00:29 -08:00
dcdbas.rst Documentation: move driver-api/dcdbas to userspace-api/ 2024-01-03 14:17:40 -07:00
dma-buf-alloc-exchange.rst doc: uapi: Add document describing dma-buf semantics 2023-08-21 18:20:05 +02:00
dma-buf-heaps.rst dma-buf: heaps: cma: Create CMA heap for each CMA reserved region 2025-10-18 21:31:22 +05:30
ELF.rst ELF: document some de-facto PT_* ABI quirks 2023-04-20 17:53:38 -06:00
futex2.rst futex2: Documentation: Document sys_futex_waitv() uAPI 2021-10-07 13:51:13 +02:00
index.rst rseq: Add fields and constants for time slice extension 2026-01-22 11:11:16 +01:00
iommufd.rst iommufd: Fix spelling errors in iommufd.rst 2025-08-18 11:15:06 -03:00
isapnp.rst Documentation: move driver-api/isapnp to userspace-api/ 2024-01-03 14:17:39 -07:00
landlock.rst landlock: Add audit documentation 2025-03-26 13:59:49 +01:00
liveupdate.rst docs: add luo documentation 2025-11-27 14:24:39 -08:00
lsm.rst LSM: Create lsm_list_modules system call 2023-11-12 22:54:42 -05:00
mfd_noexec.rst mm/memfd: add documentation for MFD_NOEXEC_SEAL MFD_EXEC 2024-06-15 10:43:07 -07:00
mseal.rst LoongArch: Enable ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS 2025-05-30 21:45:42 +08:00
no_new_privs.rst doc: ReSTify no_new_privs.txt 2017-05-18 10:30:09 -06:00
ntsync.rst docs: ntsync: Add documentation for the ntsync uAPI. 2025-01-08 13:18:12 +01:00
perf_ring_buffer.rst coresight: docs: Remove target sink from examples 2025-03-11 14:55:57 +00:00
rseq.rst rseq: Lower default slice extension 2026-01-22 11:11:20 +01:00
seccomp_filter.rst Documentation: userspace-api: correct spelling 2023-02-02 11:07:18 -07:00
spec_ctrl.rst Documentation: clarify PR_SPEC_L1D_FLUSH 2025-10-29 16:19:27 -06:00
sysfs-platform_profile.rst docs: Fix typos, improve grammar in Userspace API 2025-06-09 15:13:33 -06:00
tee.rst Documentation: Destage TEE subsystem documentation 2023-12-08 15:45:10 -07:00
unshare.rst doc-rst: fix inline emphasis in unshare.rst 2017-05-18 10:23:10 -06:00
vduse.rst VDUSE: fix documentation underline warning 2021-10-13 08:42:07 -04:00