From: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
To: Bryan Green <bryan.d.green-NSQ8wuThN14@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: librdmacm: select() gives false positive on cm channel file descriptor
Date: Thu, 03 Jun 2010 12:31:52 -0700 [thread overview]
Message-ID: <adafx13q5ef.fsf@roland-alpha.cisco.com> (raw)
In-Reply-To: <20100603190651.188C02270E-PJ7uzvdTSdjyYnqMeUxRc+1ftBKYq+Ku@public.gmane.org> (Bryan Green's message of "Thu, 03 Jun 2010 12:06:51 -0700")
> Thanks for the advise about select. In what way is select obsolete?
The crazy fd_set stuff that forces a big bitmap to be copied into the
kernel and scanned through there, and at the same set limits the number
of fds that can be handled. poll() is essentially the same interface
made more efficient and with arbitrary limits removed.
- R.
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Roland Dreier <rolandd-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org> || For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/index.html
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prev parent reply other threads:[~2010-06-03 19:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-02 0:04 librdmacm: select() gives false positive on cm channel file descriptor Bryan Green
[not found] ` <20100602000456.A4C10225DA-PJ7uzvdTSdjyYnqMeUxRc+1ftBKYq+Ku@public.gmane.org>
2010-06-03 16:06 ` Hefty, Sean
[not found] ` <CF9C39F99A89134C9CF9C4CCB68B8DDF255F4634BE-osO9UTpF0USkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2010-06-03 18:33 ` Bryan Green
[not found] ` <20100603183338.229F222BCB-PJ7uzvdTSdjyYnqMeUxRc+1ftBKYq+Ku@public.gmane.org>
2010-06-03 18:44 ` Roland Dreier
[not found] ` <adask54ot0s.fsf-BjVyx320WGW9gfZ95n9DRSW4+XlvGpQz@public.gmane.org>
2010-06-03 19:06 ` Bryan Green
[not found] ` <20100603190651.188C02270E-PJ7uzvdTSdjyYnqMeUxRc+1ftBKYq+Ku@public.gmane.org>
2010-06-03 19:31 ` Roland Dreier [this message]
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