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"rm -rf "性能极低

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ontap-9
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perf
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适用场景

  • ONTAP 9
  • NFS
  • FabricPool
  • FlexCache

问题描述

  • rm -rf * 从客户端发出的速度非常慢
  •  Avg SRT 对于 REMOVE 客户端和存储上的调用、tcpdump显示为high

===========================================================================
ONC-RPC Service Response Time Statistics - 2009779106.nodename.trc:
Index  Procedure  Calls  Min SRT (s)  Max SRT (s)  Avg SRT (s)  Sum SRT (s)
---------------------------------------------------------------------------
NFS Version 3
ACCESS      4   217    0.000041    0.001538    0.000220    0.047819
GETATTR      1   534    0.000043    0.002227    0.000223    0.118914
LOOKUP      3   3710    0.000056    0.015549    0.000718    2.662431
READDIR     16    42    0.000070    0.001054    0.000295    0.012392
READDIRPLUS   17   366    0.000098    0.211175    0.017263    6.318126
REMOVE     12  15832    0.000213    6.917006   0.190092 3009.528768
RMDIR      13   215    0.000189    0.385931    0.080173   17.237143
NFS Version 3
---------------------------------------------------------------------------

  • 卷已分层到FabricPool、并且是具有多个目标的FlexCache原始卷
  • FabricPool无延迟

 

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