| Date | Wed, 14 Jun 2023 17:27:21 +0200 | From | Sebastian Reichel <> | Subject | Re: [PATCH v5 00/25] Add perf support to the rockchip-dfi driver |
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Hi,
On Wed, Jun 14, 2023 at 03:40:34PM +0200, Sebastian Reichel wrote: > I tested the series on RK3588 EVB1. The read/write byts looks > sensible. Sometimes cycles reads unrealistic values, though: > > 18446744070475110400 rockchip_ddr/cycles/
I have seen this going off a few times with and without memory pressure. If it's way off, it always seems to follow the same pattern: The upper 32 bits are 0xffffffff instead of 0x00000000 with the lower 32 bits containing sensible data.
-- Sebastian [unhandled content-type:application/pgp-signature] |