[xfs-masters] [Bug 42846] New: Poor perfomance

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=42846

           Summary: Poor perfomance
           Product: File System
           Version: 2.5
    Kernel Version: 3.0.0
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: XFS
        AssignedTo: xfs-masters at oss.sgi.com
        ReportedBy: anz_ul at mail.ru
        Regression: No


With big partition (>60Tb) have some problem with perfomance. After not long
use (10 or 12 days) reading speed down for 50 Mb/s. Normal speed from other
disk (<40Tb) 260-300 Mb/s. After, when we delete partition 61 Tb and create new
31 Tb everything is fine and speed is 260-300. May be I must do something for
better perfomanve, but why when I create a partition reading speed is normal
260-300 Mb/s. But no prublem with write speed in all partition 260-300 Mb/s

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