メインコンテンツまでスキップ

非常に低速な"rm-rf"パフォーマンス

Views:
60
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
perf
Last Updated:

環境

  • ONTAP 9
  • NFS
  • FabricPool
  • FlexCache

問題

  • rm -rf * クライアントから非常に遅い
  •  Avg SRTREMOVE クライアントとストレージの両方のコールでtcpdumpがhighと表示される

===========================================================================
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
---------------------------------------------------------------------------

  • ボリュームがFabricPoolに階層化され、複数のデスティネーションで構成されるFlexCacheの元のボリューム
  • FabricPoolによるレイテンシなし

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.