Hybrid-disk and File-Disk performance is very poor!
Posted: Sun Sep 20, 2020 3:44 am
Hello!
I want to add Hybrid-disk to my system (Windows server 2019+RAMDisk v6.3.1.)
I make RAID0 of Intel P4608 SSD disks for file component.
All starting good, but when all of the RAM memory has been used up, it begins to store data to a file with VERY low speed. Same same performance with File-Disk with file component on that RAID0.
To compare, please look on CrystalDisk result of that:
1. Speed of RAID0 (2xp4608) volume:
[Read]
Sequential 1MiB (Q= 8, T= 8): 13284.458 MB/s [ 12669.0 IOPS] < 5014.86 us>
Sequential 1MiB (Q= 1, T= 8): 8109.541 MB/s [ 7733.9 IOPS] < 1031.65 us>
Random 4KiB (Q= 32, T=16): 3452.678 MB/s [ 842939.0 IOPS] < 590.08 us>
Random 4KiB (Q= 32, T= 8): 2713.220 MB/s [ 662407.2 IOPS] < 374.96 us>
[Write]
Sequential 1MiB (Q= 8, T= 8): 4899.250 MB/s [ 4672.3 IOPS] < 13369.92 us>
Sequential 1MiB (Q= 1, T= 8): 4935.399 MB/s [ 4706.8 IOPS] < 1689.41 us>
Random 4KiB (Q= 32, T=16): 3282.313 MB/s [ 801345.9 IOPS] < 618.15 us>
Random 4KiB (Q= 32, T= 8): 2298.376 MB/s [ 561127.0 IOPS] < 441.48 us>
2. Speed of Hybrid-disk (when RAM is finished) or File-Disk with file component on that RAID0:
[Read]
Sequential 1MiB (Q= 8, T= 8): 111.989 MB/s [ 106.8 IOPS] <562545.83 us>
Sequential 1MiB (Q= 1, T= 8): 126.265 MB/s [ 120.4 IOPS] < 65736.74 us>
Random 4KiB (Q= 32, T=16): 15.455 MB/s [ 3773.2 IOPS] <130780.21 us>
Random 4KiB (Q= 1, T= 8): 15.418 MB/s [ 3764.2 IOPS] < 2120.72 us>
[Write]
Sequential 1MiB (Q= 8, T= 8): 1992.810 MB/s [ 1900.5 IOPS] < 33311.54 us>
Sequential 1MiB (Q= 1, T= 8): 1979.611 MB/s [ 1887.9 IOPS] < 4223.81 us>
Random 4KiB (Q= 32, T=16): 21.988 MB/s [ 5368.2 IOPS] < 91395.70 us>
Random 4KiB (Q= 1, T= 8): 25.196 MB/s [ 6151.4 IOPS] < 1295.96 us>
P.S. Sorry for my english!
P.S.S. Please help me in my problem, cause I need to buy this software for my tasks
EDIT: On Windows Server 2012+ RAMDiks v 6.1.0 same same problems
EDIT2: Windows 10 X64 2004 same problem//
I want to add Hybrid-disk to my system (Windows server 2019+RAMDisk v6.3.1.)
I make RAID0 of Intel P4608 SSD disks for file component.
All starting good, but when all of the RAM memory has been used up, it begins to store data to a file with VERY low speed. Same same performance with File-Disk with file component on that RAID0.
To compare, please look on CrystalDisk result of that:
1. Speed of RAID0 (2xp4608) volume:
[Read]
Sequential 1MiB (Q= 8, T= 8): 13284.458 MB/s [ 12669.0 IOPS] < 5014.86 us>
Sequential 1MiB (Q= 1, T= 8): 8109.541 MB/s [ 7733.9 IOPS] < 1031.65 us>
Random 4KiB (Q= 32, T=16): 3452.678 MB/s [ 842939.0 IOPS] < 590.08 us>
Random 4KiB (Q= 32, T= 8): 2713.220 MB/s [ 662407.2 IOPS] < 374.96 us>
[Write]
Sequential 1MiB (Q= 8, T= 8): 4899.250 MB/s [ 4672.3 IOPS] < 13369.92 us>
Sequential 1MiB (Q= 1, T= 8): 4935.399 MB/s [ 4706.8 IOPS] < 1689.41 us>
Random 4KiB (Q= 32, T=16): 3282.313 MB/s [ 801345.9 IOPS] < 618.15 us>
Random 4KiB (Q= 32, T= 8): 2298.376 MB/s [ 561127.0 IOPS] < 441.48 us>
2. Speed of Hybrid-disk (when RAM is finished) or File-Disk with file component on that RAID0:
[Read]
Sequential 1MiB (Q= 8, T= 8): 111.989 MB/s [ 106.8 IOPS] <562545.83 us>
Sequential 1MiB (Q= 1, T= 8): 126.265 MB/s [ 120.4 IOPS] < 65736.74 us>
Random 4KiB (Q= 32, T=16): 15.455 MB/s [ 3773.2 IOPS] <130780.21 us>
Random 4KiB (Q= 1, T= 8): 15.418 MB/s [ 3764.2 IOPS] < 2120.72 us>
[Write]
Sequential 1MiB (Q= 8, T= 8): 1992.810 MB/s [ 1900.5 IOPS] < 33311.54 us>
Sequential 1MiB (Q= 1, T= 8): 1979.611 MB/s [ 1887.9 IOPS] < 4223.81 us>
Random 4KiB (Q= 32, T=16): 21.988 MB/s [ 5368.2 IOPS] < 91395.70 us>
Random 4KiB (Q= 1, T= 8): 25.196 MB/s [ 6151.4 IOPS] < 1295.96 us>
P.S. Sorry for my english!
P.S.S. Please help me in my problem, cause I need to buy this software for my tasks
EDIT: On Windows Server 2012+ RAMDiks v 6.1.0 same same problems
EDIT2: Windows 10 X64 2004 same problem//