Thread (24 messages) 24 messages, 6 authors, 2017-08-16

[tpmdd-devel] [PATCH] tpm: improve tpm_tis send() performance by ignoring burstcount

From: Mimi Zohar <hidden>
Date: 2017-08-14 12:03:32
Also in: lkml

On Mon, 2017-08-14 at 13:56 +0300, Jarkko Sakkinen wrote:
quoted
quoted
quoted
I would like to see tpm_msleep() wrapper to replace current msleep()
usage across the subsystem before considering this. I.e. wrapper that
internally uses usleep_range(). This way we can mechanically convert
everything to a more low latency option.
Fine. ?I assume you meant tpm_sleep(), not tpm_msleep().
I think it would sense to have a function that takes msecs because msecs
are mostly used everywhere in the subsystem. This way we don't have to
change any of the existing constants.
For now converting from msleep() to tpm_msleep() will be straight
forward. ?Internally we would just use usleep_range().

Going forward, my concern is that even 1 msec might be too long for
some of these sleeps.

Mimi

?

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