To get a fast s3 resume, just add a parameter in grub.cfg to tboot command line loglvl=none
For example: Multiboot2 /boot.tboot.gz /boot/tboot.gz loglvl=none logging=serial,memory From: Justin King-Lacroix [mailto:justin.king-lacr...@cs.ox.ac.uk] Sent: Friday, November 20, 2015 5:05 AM To: Ross Philipson Cc: Sun, Ning; tboot-devel@lists.sourceforge.net Subject: Re: [tboot-devel] TBOOT 1.8.3 fails to resume from S3 Adding to Ross's case: on a Lenovo x201 Tablet, I am finding exactly the same symptom: tboot 1.8.3 is *very* slow on resume from S3. (This was not a problem with tboot 1.8.1.) On 15 September 2015 at 17:33, Ross Philipson <ross.philip...@gmail.com<mailto:ross.philip...@gmail.com>> wrote: On 09/15/2015 12:12 PM, Sun, Ning wrote: > Did you try the tboot + linux kernel? No but I don't see how that would make a difference. The problem is in the compression code in tboot (and the potential overflow too). See the other thread I started - I tried to be as clear as possible. Thanks Ross > > -----Original Message----- > From: Ross Philipson > [mailto:ross.philip...@gmail.com<mailto:ross.philip...@gmail.com>] > Sent: Tuesday, September 15, 2015 8:02 AM > To: Sun, Ning; > tboot-devel@lists.sourceforge.net<mailto:tboot-devel@lists.sourceforge.net> > Subject: Re: [tboot-devel] TBOOT 1.8.3 fails to resume from S3 > > On 09/14/2015 03:54 PM, Sun, Ning wrote: >> Try these commands in a script, and check the print-out after resumed from >> S3: >> date >> sudo rtcwake -u -s 20 -m mem >> date >> >> >> Thanks, >> -ning >> > > I started another thread where I explain what the actual problems are in the > log compression code. But in order to not ignore this response, I ran the > above: > > root@xenclient-dom0:/storage# ./do-s3.sh Tue Sep 15 14:37:17 UTC 2015 wakeup > from "mem" at Tue Sep 15 14:37:38 2015 Tue Sep 15 14:38:57 UTC 2015 > > It is taking 1m and 40s to come back. 20s are the delay for rtcwake but the > 1m 20s remaining is spent in LZ_Compress. > > [snip] > -- Ross Philipson ------------------------------------------------------------------------------ _______________________________________________ tboot-devel mailing list tboot-devel@lists.sourceforge.net<mailto:tboot-devel@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/tboot-devel
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