RE: Re: [PATCH v14 0/3] scsi: ufs: Add Host Performance Booster Support

2020-12-17 Thread Daejun Park
On 12/17/20 5:05 PM, Daejun Park wrote: > > Here is my iozone script: > > iozone -r 4k -+n -i2 -ecI -t 16 -l 16 -u 16 > > -s $IO_RANGE/16 -F mnt/tmp_1 mnt/tmp_2 mnt/tmp_3 mnt/tmp_4 > > mnt/tmp_5 mnt/tmp_6 mnt/tmp_7 mnt/tmp_8 mnt/tmp_9 mnt/tmp_10 mnt/tmp_11 > > mnt/tmp_12 mnt/tmp_13 mnt/tmp_14 mn

Re: [PATCH v14 0/3] scsi: ufs: Add Host Performance Booster Support

2020-12-17 Thread Bart Van Assche
On 12/17/20 5:05 PM, Daejun Park wrote: > Here is my iozone script: > iozone -r 4k -+n -i2 -ecI -t 16 -l 16 -u 16 > -s $IO_RANGE/16 -F mnt/tmp_1 mnt/tmp_2 mnt/tmp_3 mnt/tmp_4 > mnt/tmp_5 mnt/tmp_6 mnt/tmp_7 mnt/tmp_8 mnt/tmp_9 mnt/tmp_10 mnt/tmp_11 > mnt/tmp_12 mnt/tmp_13 mnt/tmp_14 mnt/tmp_15 m

RE: Re: [PATCH v14 0/3] scsi: ufs: Add Host Performance Booster Support

2020-12-17 Thread Daejun Park
Hi, Greg > > NAND flash memory-based storage devices use Flash Translation Layer (FTL) > > to translate logical addresses of I/O requests to corresponding flash > > memory addresses. Mobile storage devices typically have RAM with > > constrained size, thus lack in memory to keep the whole mapping

Re: [PATCH v14 0/3] scsi: ufs: Add Host Performance Booster Support

2020-12-16 Thread Greg KH
On Wed, Dec 16, 2020 at 11:44:44AM +0900, Daejun Park wrote: > NAND flash memory-based storage devices use Flash Translation Layer (FTL) > to translate logical addresses of I/O requests to corresponding flash > memory addresses. Mobile storage devices typically have RAM with > constrained size, thu

[PATCH v14 0/3] scsi: ufs: Add Host Performance Booster Support

2020-12-15 Thread Daejun Park
Changelog: v13 -> v14 1. Cleanup codes by commentted in Greg's review. 2. Add documentation for sysfs entries (from Greg's review). 3. Add experiment result of HPB performance testing. (in this mail) v12 -> v13 1. Cleanup codes by comments from Can Guo. 2. Add HPB related descriptor/flag/attribut