[LU-3579] Performance regression after applying fix for LU-1397

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Major
• Affects Version/s: Lustre 2.1.6
• Severity: 2
• Assignee: Oleg Drokin
• Reporter: Manish Patel (Inactive)

Description

After applying the patch for LU-1397, Fujitsu has seen performance for their benchmark suite decrease by about 7%. This is pushing the system outside of the acceptance range, and so therefore a high priority for us. I am trying to get information about what exactly is going more slowly (what application/file operations), but would it be possible for someone to review the patch to see if there are any areas that could be improved?

Thanks.

Issue Links

• is related to: LU-1397 ENOENT on open()