mmm no improvement :-( me@vbox-ubuntu-1210-i386:~$ uname -a Linux vbox-ubuntu-1210-i386 3.9.0-030900rc4-generic #201303232035 SMP Sun Mar 24 00:44:55 UTC 2013 i686 i686 i686 GNU/Linux me@vbox-ubuntu-1210-i386:~$ time sudo apt-get update
16GByte real 17m36.608s user 0m15.096s sys 0m11.608s 12GByte real 0m10.705s user 0m1.748s sys 0m0.428s I have ran strace as 'sudo strace apt-get update' and it shows that the slow-down is really due to abdominal bad kernel I/O performance. Alsmost all the time is actually spend while blocking on the read() system call (which is not much of a surprise I guess if we're already looking at kernel versions.. ) Just wanted to do the exercise anyway.. What's the next step? Going backwards indeed to find out when it was introduced? Is the VirtualBox VM settings "Extended features: Enable PAE/ NX" relevant? I'm more of an embedded dev so not too familiar with x86 hw -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1107150 Title: B75 Chipset I/O Problems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1107150/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs