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| author | Anna-Maria Behnsen <anna-maria@linutronix.de> | 2025-03-03 14:11:20 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-03-08 16:37:41 +0300 |
| commit | 97a5a90ca234eaa3de8a6aa44d43de2827393019 (patch) | |
| tree | ea5064a1a52134589f8159cab9fbd00418893242 /tools/perf/scripts/python/syscall-counts.py | |
| parent | ed0c10f34ffd94d6e0d37b830c232f7ca38ea174 (diff) | |
| download | linux-97a5a90ca234eaa3de8a6aa44d43de2827393019.tar.xz | |
vdso: Move architecture related data before basetime data
Architecture related vdso data is required in the fast path when reading
CLOCK_MONOTONIC or CLOCK_REALTIME. At the moment, this information is
located at the end of the vdso_time_data structure, which is a suboptimal
cache layout.
Move the architecture specific VDSO data right before the basetime
information, which is always required. This change does not have an impact
on architectures with CONFIG_ARCH_HAS_VDSO_DATA=n. Architectures, which
have it enabled, gain a better cache layout.
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250303-vdso-clock-v1-18-c1b5c69a166f@linutronix.de
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions