LKML Archive on
help / color / mirror / Atom feed
From: Al Niessner <>
Subject: atomic_t and atomic_inc
Date: Thu, 22 Apr 2004 11:58:40 -0700	[thread overview]
Message-ID: <> (raw)

First, I am not subscribed to this list so please reply to me directly
if you wish a timely response to any questions. In any case, I will lurk
in the archives for responses.

I am using atomic_t to count interrupts from some piece of hardware.
These interrupts come at a fairly high rate -- 10 KHz and higher. The
problem is, will I get increment problem at the limit of atomic_t or
will it wrap around without error? I read the docs (man pages, on-line
api docs, this list and other stuff) and none of them talk about the
behavior of atomic_t at the boundaries. Furthermore, am I guaranteed of
any boundary behavior across platforms?

Thank you in advance for any and all help.

Al Niessner <>
Jet Propulsion Laboratory

All opinions stated above are mine and do not necessarily reflect 
those of JPL or NASA.

| dS | >= 0

             reply	other threads:[~2004-04-22 18:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-22 18:58 Al Niessner [this message]
2004-04-22 20:50 ` Richard B. Johnson
2004-05-15 22:54   ` Jamie Lokier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \
    --subject='Re: atomic_t and atomic_inc' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).