Hi all,
I have a big problem with the performance during file access over a SMB share. The performance drop is always done with small files. If I copy a single large file, I have the full Gigabit speed (transfer rate: 120 MB / s). As soon as I but many small files (about 1000 with a size between 100kb and 5MB), the speed breaks to 10 - 15 MB / s one.
The HDD cannot be the problem, if tested it also with a SSD drive.
I copied the same files locally (no network) and so I get a speed of 300 MB/s. If I do it over the network (Gigabit) (on the PC itself, via IP or localhost), I get a speed of 70 MB / s. I tested the same between two PCs (same configuration as before) with a Gigabit Switch (various types tested), the speed breakes down to 15 MB / s.
The same I have tested with various switches, PCs, servers, and network cards. I have always the same problem.
I have already done the Guideline Performance Tuning for Windows Server 2008 R2, and (disable SMB2, adjust MTU value, Send Offload disabled, etc.) other tips. Unfortunately, none of the entire Board entries has helped .
Does anyone experience this problem? Would be great if someone could help me.
For hardware and software:
- HP EliteBook 8460p with 240 GB SSD 6 Gb
- ProLiant BL 460 X5670 64GB RAM, 4x 300GB SAS 6GBs
- ProLiant BL 680 E7-4830, 64GB RAM, 4x 200GB SAS SSD 6GBs
- Various HP all Gigabit Switch (J9559A, ProCurve 1800-24G, etc)
- Tested with Wndows 7 Pro, Windows 2k8 R2, all up-to-date
Thanks very much!!
Regards
Dennis