From mboxrd@z Thu Jan 1 00:00:00 1970 From: keith.busch@intel.com (Keith Busch) Date: Wed, 18 Oct 2017 09:02:15 -0600 Subject: How to improve long suspend time in `nvme_shutdown_ctrl` In-Reply-To: References: <72b666c9-dd57-ef87-e89e-ba280f34e90c@molgen.mpg.de> <20171018074523.GA20872@infradead.org> Message-ID: <20171018150215.GC32530@localhost.localdomain> On Wed, Oct 18, 2017@12:58:04PM +0200, Paul Menzel wrote: > rtd3e : 4c4b40 The specification recommends time to shutdown not exceed rtd3e, which you have here at 5 seconds, so it sounds like you're well below the device's maximum. The 338ms your system spent in nvme is already pretty good, it seems.