System file cache with nginx?

Is nginx+ssi, it is cache. In the cache millions of files at 10-15 KB.

The cache is placed on the ssd helps to avoid problems with parallel queries.


I wonder what the optimal FS for these tasks?

Because in my case, a lot of the overhead goes to the metadata.

Of course with noatime,nodiratime.


Tried to find the answer in the search engines, but on the surface it is not.


I use Linux debian stable.

FS ext2, I gave up on ext3, because I thought the extra logging.

Besides faster ext2 ext3 and ext4 I'm afraid.


There's still Btrfs, but I need the most primitive functionality.

Roughly key-value store on disk without an ACL at all. Btrfs is also afraid.


The issue of workload can be solved by adding frontend.

But, I suspect that FS can be highly optimized.