This page is under development
Analysis of trim and background maintenance
Write performance after trim
The test is performed on block level (executed in mmc_test.c in the kernel).
- Write linear to all blocks.
- Write to random blocks, total of 20% of the card capacity.
- no trim - nothing is done here
- secure erase - erase the same blocks that will be written to in the TEST, total 128, 256, 512 MiB
Test The test writes 128 MiB linear with different transfer size 4k to 4 MiB. The Pre-condtions are run for every transfer size.
BKOPS is enable on this card but for this test the kernel has no BKOPS support.
WorkingGroups/KernelArchived/Specs/StoragePerfMMC-trim-bg-operations (last modified 2013-01-14 19:34:51)