27 Aug
2026
27 Aug
'26
2:27 p.m.
On Fri, Aug 21, 2026 at 10:49:03AM +0100, James Clark wrote:
The original purpose of timestamps in per-CPU mode was to roughly emit samples in the order they occurred across multiple CPUs, rather than emit all the trace from CPU 1 followed by all from CPU 2 etc. Previously there was no way to change the interval from the minimum of 1 cycle, but custom intervals are now supported by the driver.
Drastically reduce the number of timestamps emitted by increasing the interval, which is more than enough to interleave sample generation. This reduces the size of the trace generated.
Signed-off-by: James Clark james.clark@linaro.org
Reviewed-by: Leo Yan leo.yan@arm.com