* Diego Calleja [off-list ref] wrote:

quoted

Measurements show that noatime helps 20-30% on regular desktop 
workloads, easily 50% for kernel builds and much more than that (in 
excess of 100%) for file-read-intense workloads. We cannot just walk

And as everybody knows in servers is a popular practice to disable it. 
According to an interview to the kernel.org admins....

yeah - but i'd be surprised if more than 1% of all Linux servers out 
there had noatime.

"Beyond that, Peter noted, "very little fancy is going on, and that is 
good because fancy is hard to maintain." He explained that the only 
fancy thing being done is that all filesystems are mounted noatime 
meaning that the system doesn't have to make writes to the filesystem 
for files which are simply being read, "that cut the load average in 
half."

nice quote :-)

I bet that some people would consider such performance hit a bug...

yeah.

	Ingo

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