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akiradeveloper / dm-writeboost

Log-structured Caching for Linux
GNU General Public License v2.0
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perfomance test #231

Closed pipes80-collab closed 3 years ago

pipes80-collab commented 3 years ago

i have implented in dmsetup command the threshold then i have forget at first time. now the result is this, in the pic there is a screenshot then is a test without threshold Schermata del 2021-09-02 12-30-58

akiradeveloper commented 3 years ago

@pipes80-collab Which devices did you use in the tests? nvme0n1 and 1n1 are both NVMe devices?

pipes80-collab commented 3 years ago

the device is samsung sm851 nvme and 970 pro

akiradeveloper commented 3 years ago

@pipes80-collab

You ran a benchmark program called kdiskmark. What is the target device of each run? From the screenshot use use /home/filippo/kDiskMark. What is the block device behind the directory?

I think the IO from kdiskmark didn't run through the writeboost device which is /dev/mapper/wbdev.

pipes80-collab commented 3 years ago

the device is samsung sm851 and directory is /home/filippo/kDiskMark. Think you can to be possible increase performance?

akiradeveloper commented 3 years ago

Sorry, I can't help you any more because you don't understand Linux's storage system. You didn't answer my questions correctly.

pipes80-collab commented 3 years ago

👍

pipes80-collab commented 3 years ago

Maybe is nvme0n1p2?

akiradeveloper commented 3 years ago

@pipes80-collab If you learn the very basics of Linux system (not kernel), you will be able to answer my questions correctly. Please learn before you ask me a question next time.