Kan Liang c53e14f1ea perf: Extend per event callchain limit to branch stack ... The commit 97c79a38cd ("perf core: Per event callchain limit") introduced a per-event term to allow finer tuning of the depth of callchains to save space. It should be applied to the branch stack as well. For example, autoFDO collections require maximum LBR entries. In the meantime, other system-wide LBR users may only be interested in the latest a few number of LBRs. A per-event LBR depth would save the perf output buffer. The patch simply drops the uninterested branches, but HW still collects the maximum branches. There may be a model-specific optimization that can reduce the HW depth for some cases to reduce the overhead further. But it isn't included in the patch set. Because it's not useful for all cases. For example, ARCH LBR can utilize the PEBS and XSAVE to collect LBRs. The depth should have less impact on the collecting overhead. The model-specific optimization may be implemented later separately. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20250310181536.3645382-1-kan.liang@linux.intel.com		2025-03-17 11:23:36 +01:00
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asm-generic	\n	2025-01-23 13:36:06 -08:00
drm	drm/amdgpu: add a BO metadata flag to disable write compression for Vulkan	2025-02-03 12:11:36 -05:00
linux	perf: Extend per event callchain limit to branch stack	2025-03-17 11:23:36 +01:00
misc	Revert "misc: fastrpc: Restrict untrusted app to attach to privileged PD"	2024-08-15 16:59:14 +02:00
mtd	ubi: Expose interface for detailed erase counters	2025-01-18 15:32:32 +01:00
rdma	RDMA/nldev: Add IB device and net device rename events	2024-11-04 06:57:21 -05:00
regulator	uapi: regulator: Fix typo	2024-01-04 13:22:24 +00:00
scsi	scsi: mpi3mr: Add ioctl support for HDB	2024-06-26 23:30:09 -04:00
sound	ASoC: Updates for v6.14	2025-01-20 16:15:07 +01:00
video
xen	xen/privcmd: Add new syscall to get gsi from dev	2024-09-25 09:54:55 +02:00
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