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From: rcpilot2010@gmail.com (Abu Rasheda)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Sleep and Wake up
Date: Mon, 2 May 2011 11:32:32 -0700	[thread overview]
Message-ID: <BANLkTimpAEycOnqO1qErguf0zbuLd8yB8g@mail.gmail.com> (raw)

I am testing my driver on much faster host processor and facing
following issues:

My host is too powerful and it can fill up device buffer queue very fast.

I get best performance when I do busy wait, but this is not desirable
and is bad design.

I need to sleep and wake up quickly and predictability. Indication
from device that queue has space, is coming in form of memory write
(device writes to a memory location of i86 processor).

I tried using wait_event_interruptible_timeout, I am depending on 2nd
parameter of the function but it wake up is too slow, even tried using
value of 1.

Any suggestions ?

             reply	other threads:[~2011-05-02 18:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-02 18:32 Abu Rasheda [this message]
2011-05-02 19:28 ` Sleep and Wake up Greg KH
2011-05-02 21:02   ` Abu Rasheda
2011-05-02 22:04     ` Greg KH
2011-05-02 23:04       ` Fwd: " Abu Rasheda
2011-05-02 19:40 ` Kernel compilation Ezequiel García
2011-05-05 14:15   ` Pico Geyer
2011-05-03  7:10 ` Sleep and Wake up Mulyadi Santosa
2011-05-10  3:14 ` Peter Teoh
  -- strict thread matches above, loose matches on Subject: below --
2011-05-03  2:13 Vikram Narayanan

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