Re: [systemd-devel] Improve boot-time of systemd-based device, revisited

2015-06-20 Thread cee1
2015-06-19 15:34 GMT+08:00 Chaiken, Alison : > cee1 writes: >> 3.1 "consider disabling readahead collection in the shipped devices, >> but leave readahead replay enabled." > > > ceel, are you aware that readahead is deprecated in systemd and has not been > included since about release 216? Some

Re: [systemd-devel] Improve boot-time of systemd-based device, revisited

2015-06-19 Thread Daniel Mack
On 06/19/2015 09:34 AM, Chaiken, Alison wrote: > ceel, are you aware that readahead is deprecated in systemd and has not > been included since about release 216? Some of us in automotive are > still working on it. I have some patches here > > https://github.com/chaiken/systemd-hacks/tree/pac

Re: [systemd-devel] Improve boot-time of systemd-based device, revisited

2015-06-19 Thread Chaiken, Alison
cee1 writes: 2. Add a kernel sockopt for AF_UNIX to increase the maximum datagram queue length for SOCK_DGRAM sockets. ceel, are you aware of the (hopefully) pending full merge of kdbus in kernel 4.2? And that it is essentially a bottoms-up redesign of IPC that supports the existing D-Bus

Re: [systemd-devel] Improve boot-time of systemd-based device, revisited

2015-06-18 Thread cee1
2015-06-14 21:17 GMT+08:00 cee1 : > Hi all, > > I've recently got another chance to improve the boot-time of a > systemd-based device. I'd like to share the experience here, and some > thoughts and questions. Two more articles about boot optimization: * http://freedesktop.org/wiki/Software/systemd

Re: [systemd-devel] Improve boot-time of systemd-based device, revisited

2015-06-16 Thread Kok, Auke-jan H
On Mon, Jun 15, 2015 at 5:44 AM, Harald Hoyer wrote: > On 14.06.2015 15:17, cee1 wrote: > > > BTW, systemd-bootchart has a option to chart entropy, how is the > > entropy involved in boot up procedure? > > Well, if daemons need bytes from /dev/random (think sshd key generation), I > guess they wi

Re: [systemd-devel] Improve boot-time of systemd-based device, revisited

2015-06-15 Thread Harald Hoyer
On 14.06.2015 15:17, cee1 wrote: > Hi all, > > I've recently got another chance to improve the boot-time of a > systemd-based device. I'd like to share the experience here, and some > thoughts and questions. > > The first time I tried to improve the boot-time of systemd: > http://lists.freedeskto