Performance difference between two "identical" win2000 clients
Kevin Baughman
klb at paradyne.com
Thu May 8 15:50:02 GMT 2003
Hi!
We just figured out the difference! The two PCs were not identical
because they
were running different versions of Symantic AntiVirus. Turning off
real-time protection
made the performance of the two PCs the same!
Thanks!
Kevin
--------------------------------------
Kevin Baughman wrote:
> Hi!
>
> We have two Win2000 Pro clients accessing the same samba server. As far
> as we can tell, tcp/ip is configured exactly the same for both PCs.
> Also,
> as far as we can tell, the samba server is not set up to do anything
> different based
> on the client.
>
> The first PC, PC1, is very slow and a sniffer shows many more SMB
> messages than
> the second PC, PC2, that is very fast. By slow I mean UI response
> times of 15 to 30 seconds,
> while the fast PC response times are more like 2 to 5 seconds. The UI
> I'm using is
> Visual SourceSafe.
>
> I've listed below the messages that the sniffer caught for the two
> PCs. Can anyone tell
> me why the two PCs are communicating differently to the samba server?
>
> Thanks!
> Kevin
>
>
> PC1
> ----------------------------------------------------------------------
>
> No. Time Source Destination
> Protocol Info
> 29 2.573403 135.26.8.30 135.26.1.36
> SMB NT Create AndX Request, Path: \vss\ems2.2\data\a\aaaaaaaa
> 30 2.577805 135.26.1.36 135.26.8.30
> SMB NT Create AndX Response, FID: 0x1312
> 31 2.578088 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 32 2.580893 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 33 2.581005 135.26.8.30 135.26.1.36
> SMB Transaction2 Request SET_FILE_INFORMATION, FID: 0x1312
> 34 2.583246 135.26.1.36 135.26.8.30
> SMB Transaction2 Response SET_FILE_INFORMATION
> 35 2.583364 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 36 2.587520 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 37 2.587755 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 38 2.590937 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 39 2.591091 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 256 bytes at offset 0
> 40 2.593309 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 256 bytes
> 41 2.593536 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 512 bytes at offset 6084
> 42 2.596197 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 512 bytes
> 43 2.596360 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 256 bytes at offset 5622
> 44 2.598447 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 256 bytes
> 45 2.598569 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 256 bytes at offset 1099
> 46 2.600521 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 256 bytes
> 47 2.600635 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 256 bytes at offset 452
> 48 2.602817 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 256 bytes
> 49 2.602941 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 256 bytes at offset 5785
> 50 2.605603 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 256 bytes
> 51 2.605860 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 256 bytes at offset 5766
> 52 2.607925 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 256 bytes
> 53 2.608052 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 256 bytes at offset 7
> 54 2.610233 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 256 bytes
> 55 2.610387 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 512 bytes at offset 0
> 56 2.613030 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 512 bytes
> 57 2.613223 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 58 2.615142 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 59 2.615356 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 512 bytes at offset 512
> 60 2.618160 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 512 bytes
> 61 2.618358 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 2 bytes at offset 0
> 62 2.620594 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 2 bytes
> 63 2.620712 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 64 2.622980 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 65 2.623083 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 66 2.625052 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 67 2.625138 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 68 2.627514 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 69 2.628012 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 70 2.629876 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 71 2.630035 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 4096 bytes at offset 0
> 72 2.634239 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 4096 bytes
> 76 2.636668 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 4096 bytes at offset 2500
> 77 2.640957 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 4096 bytes
> 81 2.643512 135.26.8.30 135.26.1.36
> SMB Read AndX Request, FID: 0x1312, 4096 bytes at offset 0
> 82 2.647967 135.26.1.36 135.26.8.30
> SMB Read AndX Response, FID: 0x1312, 4096 bytes
> 86 2.653324 135.26.8.30 135.26.1.36
> SMB Transaction2 Request QUERY_FILE_INFORMATION, FID: 0x1312
> 87 2.655071 135.26.1.36 135.26.8.30
> SMB Transaction2 Response QUERY_FILE_INFORMATION
> 88 2.655349 135.26.8.30 135.26.1.36
> SMB Close Request, FID: 0x1312
> 89 2.657651 135.26.1.36 135.26.8.30
> SMB Close Response
>
> PC2
> ----------------------------------------------------------------------------------
>
>
> No. Time Source Destination
> Protocol Info
> 592 3.585291 135.26.8.51 135.26.1.36
> SMB NT Create AndX Request, Path: \vss\ems2.2\data\a\aaaaaaaa
> 594 3.590860 135.26.1.36 135.26.8.51
> SMB NT Create AndX Response, FID: 0x1337
> 595 3.591734 135.26.8.51 135.26.1.36
> SMB Close Request, FID: 0x1337
> 596 3.594373 135.26.1.36 135.26.8.51
> SMB Close Response
> -------------------------------------------------------------------------------------------
>
>
>
>
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