TRIM clustering

Alexander Motin mav at
Sat Apr 30 06:54:21 UTC 2011


I've noticed that on file deletion from UFS with TRIM enabled, kernel
issues BIO_DELETE for each 16K (block size?) separately -- thousands per
second for single big file deletion. Fortunately ada driver will try to
aggregate them for the device, but won't some clustering code worth to
be there?

Alexander Motin

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