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vxfsstat

 
Pauljgr
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vxfsstat

I have two systems that are similar in function, although the file system layout is different

 

when I run vxfsstat, I get two very different output.

 

Server 1.

 

01:04:42.359 Fri Nov 30 01:04:42 2012 -- absolute sample

Lookup, DNLC & Directory Cache Statistics
    80032 maximum entries in dnlc
264810814821 total lookups         96.02% fast lookup
264872242245 total dnlc lookup     96.12% dnlc hit rate
10196969076 total enter            24.73  hit per enter                                 <-----
        0 total dircache setup      0.00  calls per setup
10324371792 total directory scan            0.27% fast directory scan

inode cache statistics
    80003 inodes current     80003 peak                80000 maximum
10194163829 lookups            98.20% hit rate                                               <-----
    80003 inodes alloced          0 freed
    69452 sec recycle age
       -1 sec free age

 

Server 2.

 

01:05:11.364 Fri Nov 30 01:05:11 2012 -- absolute sample

Lookup, DNLC & Directory Cache Statistics
    80032 maximum entries in dnlc
75090576770 total lookups          98.09% fast lookup
75154168932 total dnlc lookup      99.05% dnlc hit rate
658769718 total enter              99.88  hit per enter                           <-----
        0 total dircache setup      0.00  calls per setup
775803024 total directory scan      3.72% fast directory scan

inode cache statistics
    80003 inodes current     80003 peak                80000 maximum
655737309 lookups            15.52% hit rate                                             <----
    80003 inodes alloced          0 freed
    29017 sec recycle age
       -1 sec free age

 

 

 

At face value, it appears that with server 1 with %hit rate at 98.2% that it is performing much better than server 2 which is running at 15.52%

 

Can someone confirm that is correct, or am I not understanding the output correclty?

1 REPLY 1
Ajin_1
Valued Contributor

Re: vxfsstat

Hi

 

The hit rate here mentioned was buffer cache value

Thanks & Regards
Ajin.S
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