Readdir ls -lU graphs
From Linux NFS
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* [[File:v3_ls_lU_noplus_real.jpg]] | * [[File:v3_ls_lU_noplus_real.jpg]] | ||
* [[File:v3_ls_lU_plus_real.jpg]] | * [[File:v3_ls_lU_plus_real.jpg]] | ||
| + | ** Falling back to readdir operations for large directories makes this command take longer. Removing the readdir plus cap from 2.6.36 improves performance, but doesn't match 2.6.38 kernels. Adding a readdir plus cap to 2.6.38 doubles the time needed for this command to complete. | ||
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=== NFS v4 === | === NFS v4 === | ||
* [[File:v4_ls_lU_noplus_real.jpg]] | * [[File:v4_ls_lU_noplus_real.jpg]] | ||
Revision as of 17:57, 7 April 2011
36: Linux 2.6.36
36NORC: Linux 2.6.36 (without readdir cap)
38: Linux 2.6.38
38RC: Linux 2.6.38 (with readdir cap added back)
38NB: Linux 2.6.38 (with Neil Brown's patch and loop detection)
Contents |
Real
NFS v3
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- Falling back to readdir operations for large directories makes this command take longer. Removing the readdir plus cap from 2.6.36 improves performance, but doesn't match 2.6.38 kernels. Adding a readdir plus cap to 2.6.38 doubles the time needed for this command to complete.
