Part Number:OMAP-L138
Tool/software: Linux
Hello,
In our OMAPL138 application we use either SATA or eMMC SSD manufactured by Greenliant. Both interfaces work fine, SATA drive was a real plug'n'play one.
We've recently tried to optimize disk parameters to fit SSD better: write page (8kB) and erase block (2MB).
A number of web pages has been scanned and we've tried to follow recommendations for partitioning and filesystem creation - best fit to our understanding should be:
fdisk -H 224 -S 56 /dev/sda
mke2fs -b 4096 -j -t ext3 -E stride=2,stripe-width=512 /dev/sda1
Any difference in access times either with SATA or eMMC has not, however, been seen which way ever we try to tune the params; fdisk seems to reject all params and will use CSH "74 heads, 41 sectors/track, 8765 cylinders, total 62533296 sectors" whatever we try to feed it.
We would like to ask specialists some advice how to optimize SSD performance.
Our understanding is that this 3.3.0 Linux does not support "TRIM", is it so?
Best Regards,
Risto