Linux 2.6.30 Kernel Benchmarks

[phoronix]

Phoronix: Linux 2.6.30 Kernel Benchmarks

With the Linux 2.6.30 kernel being prepped for release in early June, we have set out to provide a few benchmarks of this latest Linux kernel to see how it compares to its two earlier predecessors. While this new kernel may offer support for new file-systems (NILFS2, in particular), support for LZMA/BZIP2 kernel image compression, a new CPU architecture (Microblaze) and many other changes, are there any major performance regressions or improvements like we have spotted with our previous Linux kernel benchmarks?

http://www.phoronix.com/vr.php?view=13891

[Apopas]

The 4GB write performance is really interesting, but why this 7z compression regression?

[susikala]

It would be really interesting if some kernel developers looked at the regressions and bisected them.

Hell, I might even do it myself if I find the time this weekend.

[Gentooer]

It would add a lot to the article if you could at least attempt to explain the instances where there are large performance changes.

[L33F3R]

why this 7z compression regression?

because the kernel is getting fat

[Apopas]

So? fat ones are beautiful

[sharms]

I have been running this kernel for a few days on Ubuntu Intrepid and it 'feels' faster than 2.6.28 from a desktop usage standpoint.

My main drive is encrypted, so maybe I am just seeing performance improvements similar to GnuPG benchmark, but either way I like it.

[Elv13]

These test should be done with 64bit too. On gentoo, we found 2.6.30 over 600% faster in most intensive I/O load (like decompression). A 3 years old (introduced in 2.6.16) regression have been fixed.

[Veerappan]

These test should be done with 64bit too. On gentoo, we found 2.6.30 over 600% faster in most intensive I/O load (like decompression). A 3 years old (introduced in 2.6.16) regression have been fixed.

I believe that the first page of the article mentioned that the testing was performed using Ubuntu 9.04 x86-64.

[Michael]

These test should be done with 64bit too. On gentoo, we found 2.6.30 over 600% faster in most intensive I/O load (like decompression). A 3 years old (introduced in 2.6.16) regression have been fixed.

From the article:

With the Linux 2.6.28, 2.6.29, and 2.6.30-rc7 kernels we obtained the x86_64 vanilla kernels from the Ubuntu mainline kernel PPA.