Hi,
I am using the /proc/sys/vm/block_dump
to see reading and writing of blocks for a process.
I am looking at the postgresql database process.
When I run a query for the first time I see a lot of
READs. but the next times I run it, it doesn't show
READs, suggesting the kernel have cahced those blocks
somewhere. Even if I get out of the program and reenters
it doesn't help. I also disabled the swapfile just in case(probably not
related).
How can I flush this caching?
Regards,
tzahi.
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