"rm -rf "性能极低
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
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ONC-RPC Service Response Time Statistics - 2009779106.nodename.trc:
Index Procedure Calls Min SRT (s) Max SRT (s) Avg SRT (s) Sum SRT (s)
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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
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- 卷已分层到FabricPool、并且是具有多个目标的FlexCache原始卷
- FabricPool无延迟