Pete,

I haven't been following this thread closely but latest generation SCSI drives can be below 4 ms seek times as rated by their manufacturers.

FYI, I haven't seen any issues with the persistent Sniffer beta run as a resource kit service besides some expected brief delays according to the way that processes when traffic is less heavy.

Matt



Pete McNeil wrote:
I must be getting punchy... but this just occurred to me... Anybody else remember when a high performance hard drive had a seek time just under 30ms ??

_M

At 06:01 PM 4/7/2004, you wrote:
If thats all that happens during the first setup timer than you do have some performance issue on a production machine.
My production mail server is not too beefy and does somewhere around 120k+ a day.
Heres a snipplet from my logs (with persistent sniffer) for comparison
 
fde2jqoe        20040407041105  D7f587132019a8525.SMD   0       31      Final
fde2jqoe        20040407041105  D7f577130019a80fe.SMD   0       15      Final
fde2jqoe        20040407041106  D7f5973740202893b.SMD   0       16      Clean
fde2jqoe        20040407041109  D7f58737302028553.SMD   0       16      Final
fde2jqoe        20040407041109  D7f53712e019a73bf.SMD   0       15      Final
fde2jqoe        20040407041120  D7f6490fe0072b647.SMD   0       0       Final
fde2jqoe        20040407041120  D7f6590ff0072b721.SMD   15      0       Final
fde2jqoe        20040407041120  D7f6591000072b84a.SMD   0       32      Final
fde2jqoe        20040407041120  D7f6591010072ba3e.SMD   0       15      Final
fde2jqoe        20040407041120  D7f6691020072bbe4.SMD   0       31      Final
fde2jqoe        20040407041121  D7f6691030072bdc9.SMD   0       16      Final
fde2jqoe        20040407041123  D7f6991050072c932.SMD   0       16      Clean
fde2jqoe        20040407041123  D7f6a91060072cbf2.SMD   0       15      Final
fde2jqoe        20040407041123  D7f6a73760202cc6f.SMD   0       16      Final
 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Pete McNeil
Sent: Wednesday, April 07, 2004 4:36 PM
To: [EMAIL PROTECTED]
Subject: RE: [sniffer] Final beta (b2) for snfrv2r3

At 04:06 PM 4/7/2004, you wrote:
So, making sure I'm following your analysis: I'm looking at my log file and I'm seeing lines similar to
 
snf2beta 20040407020014 D60a4134.SMD 181 30 Match 101576 58 20 38 68
And that 181 figure seems to hold pretty stable. 181 is substantially lower than the values I was seeing prior to the current beta [and I have a production machine similar in content and power to your test machine], but I'm seeing that you achieve numbers 2-6 times faster than I am.

Yes... that seems about right. When a persistent server is running the rulebase is almost never reloaded. Only two significant things happen during the setup time as measured by Sniffer: 1) Loading the rulebase, 2) locating a job to process (directory scan + locking).

The drop seems to indicate that the rulebase reload has stopped as it should. That only leaves the directory scan and a couple of rename/create operations.

_M

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