From: James Bottomley <James.Bottomley@suse.de>
To: markgross@thegnar.org
Cc: Linux PM <linux-pm@lists.linux-foundation.org>
Subject: Re: [RFC] pm_qos: reimplement using plists
Date: Sun, 06 Jun 2010 22:41:10 -0400 [thread overview]
Message-ID: <1275878470.7227.557.camel@mulgrave.site> (raw)
In-Reply-To: <20100606210553.GB8610@gvim.org>
On Sun, 2010-06-06 at 14:05 -0700, mark gross wrote:
> what is the scaling charactoristics of plist's for things that have a
> large dynamic range and a significant utilization of it? (say 16 bits
> of it. Which is very unlikely to ever happen)
well O(1) as the document says ... actually it's O(n) where n is the
number of different values in the list. However, it's always better
than the manual search of a single list that pm_qos currently does.
> I think in practice this will not be an issue as most users only ever
> call the pm_qos API with 2 values (at least kernel users of the API)
Well, it's better in every case, not just the low range cases.
> I've only had a quick look so far but it looks really good to me.
Thanks.
James
next prev parent reply other threads:[~2010-06-07 2:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-05 17:58 [RFC] pm_qos: reimplement using plists James Bottomley
2010-06-05 18:17 ` Rafael J. Wysocki
2010-06-05 18:19 ` James Bottomley
2010-06-06 21:05 ` mark gross
2010-06-07 2:41 ` James Bottomley [this message]
2010-06-06 21:39 ` mark gross
2010-06-07 3:05 ` James Bottomley
2010-06-09 6:38 ` Florian Mickler
2010-06-09 14:03 ` James Bottomley
2010-06-08 13:31 ` mark gross
2010-06-08 15:52 ` James Bottomley
2010-06-09 2:42 ` mark gross
2010-06-09 14:03 ` James Bottomley
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