This bug does not appear to be Ubuntu-specific. I set up the same test rig with Debian 4.0, running kernel 2.6.18, and the performance was acceptable. When I upgraded the kernel to 2.6.20, performance suffered in a similar way as with the Ubuntu 7.04 setup.
Disk write performance under 2.6.20 may be slightly faster when no other processes are running, on some boxes. But as soon as the box becomes loaded up, performance degrades much more quickly with 2.6.20 than with 2.6.18 or earlier kernels. This is not very useful for a server role. -- kernel 2.6.20 disk write performance much slower than 2.6.17 https://bugs.launchpad.net/bugs/113532 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
