Re: [m5-dev] Linux Kernel/Boot Time for X86_FS

2010-06-11 Thread Gabe Black
Gabe Black wrote: nathan binkert wrote: Hi Joel. I'm happy to hear it's booting for you! I've already translated the patches over to x86 and they do help boot time, but I couldn't tell you off hand where they went. I think we have a mercurial repository with those in it someplace.

Re: [m5-dev] Linux Kernel/Boot Time for X86_FS

2010-06-10 Thread Joel Hestness
Hi Gabe and Ali, Thanks for the leads! I'd love to get my hands on the x86-specific patches if you can find them. I have been booting to shell with m5term so far, and you're right, I need to disable the init services. Is it safe to disable all of them, or all under certain runlevels? Thanks,

Re: [m5-dev] Linux Kernel/Boot Time for X86_FS

2010-06-10 Thread Gabriel Michael Black
I think it should be safe to disable all of them, although I haven't actually tried that myself. I think that's how Alpha is usually used, but I'll let the experts comment on that. If you needed to start services like an ftp server as a workload then you might want to leave those specific

Re: [m5-dev] Linux Kernel/Boot Time for X86_FS

2010-06-10 Thread nathan binkert
Hi Joel. I'm happy to hear it's booting for you! I've already translated the patches over to x86 and they do help boot time, but I couldn't tell you off hand where they went. I think we have a mercurial repository with those in it someplace. I just wanted to say that I looked for these

Re: [m5-dev] Linux Kernel/Boot Time for X86_FS

2010-06-10 Thread Gabe Black
nathan binkert wrote: Hi Joel. I'm happy to hear it's booting for you! I've already translated the patches over to x86 and they do help boot time, but I couldn't tell you off hand where they went. I think we have a mercurial repository with those in it someplace. I just wanted to say

[m5-dev] Linux Kernel/Boot Time for X86_FS

2010-06-09 Thread Joel Hestness
Hi everyone, I am interested in helping develop X86_FS boot up and testing. Under X86_FS, I have been able to boot a couple different versions of the Linux kernel (v2.6.22.9 and v2.6.28.4), but the bring up requires more than 12 hours of simulation time. I am hoping to reduce the boot time to

Re: [m5-dev] Linux Kernel/Boot Time for X86_FS

2010-06-09 Thread Gabe Black
Hi Joel. I'm happy to hear it's booting for you! I've already translated the patches over to x86 and they do help boot time, but I couldn't tell you off hand where they went. I think we have a mercurial repository with those in it someplace. When you say bring up, does that include init scripts?

Re: [m5-dev] Linux Kernel/Boot Time for X86_FS

2010-06-09 Thread Ali Saidi
Hi Joel, The patches do two things to improve the simulation speed. First, they calculate what loopsperjiffy would be given the processor frequency and write that value into the global variable. You can get around this by just passing the lpj=XX boot argument to the kernel, so this change