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Date: Mon, 11 Jun 2007 21:59:37 -0400 From: Jeff Garzik <jeff@...zik.org> To: Dagfinn Ilmari Mannsåker <ilmari@...ari.org> CC: Arjan van de Ven <arjan@...ux.intel.com>, Henrique de Moraes Holschuh <hmh@....eng.br>, Kristen Carlson Accardi <kristen.c.accardi@...el.com>, james.bottomley@...eleye.com, linux-ide@...r.kernel.org, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org, htejun@...il.com Subject: Re: [patch 3/3] Enable Aggressive Link Power management for AHCI controllers. Dagfinn Ilmari Mannsåker wrote: > Arjan van de Ven <arjan@...ux.intel.com> writes: > >> Henrique de Moraes Holschuh wrote: >>> On Mon, 11 Jun 2007, Kristen Carlson Accardi wrote: >>>> Setting Effect >>>> ---------------------------------------------------------- >>>> min_power ALPM is enabled, and link set to enter lowest >>>> power state (SLUMBER) when idle >>>> Hot plug not allowed. >>>> >>>> max_performance ALPM is disabled, Hot Plug is allowed >>>> >>>> medium_power ALPM is enabled, and link set to enter >>>> second lowest power state (PARTIAL) when >>>> idle. Hot plug not allowed. >>> Just some food for thought: >>> If you split it into a enable/disable (0/1) attribute, and a level >>> attribute >> on/off doesn't really make sense if the question is "do you favor power >> or do you favor performance"....... > > How about just making it a numeric scale with 0 meaning no power saving > and then some fixed number of levels (e.g 0-9)? The original proposal seems far more intuitive than these alternatives. Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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