I found this old post of mine where the same disk was performing way better on linux and on the same laptop. So, at the moment the following can be rooted out as cause of the difference in performance: I also tested with the latest Debian live iso as well as with Ubuntu 16.04.7 iso and installed the 5.10.10 mainline kernel. So it doesn't seem to be about hdparm not being comparable to CrystalDiskMark. MB/sec Timing buffered disk reads: 1454 MB in 3.00 seconds = 484.59 The same disk was measured to 485 MB/sec using hdparm here: lptp : sudo hdparm -Tt /dev/sda ata2.00: supports DRM functions and may not be fully accessible ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300) SATA controller : Intel Corporation 6 Series/C200 Series Chipset Family 6 port Mobile SATA AHCI Controller (rev 04) SATA Version is: SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s) ~$ smartctl -d ata -x /dev/sdb | grep "SATA\|Firmware"įirmware Version: M0CR070 # <- latest firmware Timing buffered disk reads: 1038 MB in 3.00 seconds = 345.86 MB/sec
Timing cached reads: 16474 MB in 1.99 seconds = 8269.94 MB/sec These are the results:ĬrystalDiskMark 8.0.0 benchmark results of Crucial_CT750MX300SSD1 /dev/sdb6 My Crucial MX300 750MB is performing a lot better on Windows than on Linux and I can't find out why. I hope someone can give me a hint about where to look for.
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