Upgrade to 4.26.8 and performance bottlenecks

[Martin Hepworth]

Mike

I can't remember what O/S you use, but most people have the tmp area as
a ramdisk of sorts (tmpfs in Linux), or at least a journalled filesystem
of some sort (ext3 or better in Linux, softupdates in FreeBSD) to reduce
wait for I/O.

I've done to basic testing on FreeBSD on ramdisk vs softupdates, it made
little or no difference for either, but Linux is much better set with a
tmpfs for this area.

You might want to make sure that is done.

--
Martin Hepworth
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300


Michael Dahlberg wrote:
> Martin Hepworth [martinh at solid-state-logic.com] wrote:
>
>
>>Mike
>>
>>I'd make sure that all the required perl Modules are loaded (via CPAN is
>>the best way), and these may have changed for 4.26 from 4.13.
>>
>>Also is there any indication of problems if you set Debug=yes in the
>>MailScanner.conf and run MailScanner via check_MailScanner.
>>
>>--
>>Martin Hepworth
>>Snr Systems Administrator
>>Solid State Logic
>>Tel: +44 (0)1865 842300
>>
>
>
>   Martin:
>
>   Thanks for the suggestions.  I think the only new perl module
>   requirement is Net-CIDR.  I did add this via CPAN (MailScanner won't
>   start without it).
>
>   I just tried setting Debug=yes and logging the speed.  I get the
>   output that follows this message.  It looks as if it spends the
>   greatest amount of time creating attachment dirs for the 30
>   messages.  Would you agree that this might be a place to look in the
>   code for potential bottlenecks?
>
>   Thanks,
>   Mike
>
> Feb 18 10:17:58 antigen MailScanner[16912]: MailScanner E-Mail Virus Scanner version 4.26.8 starting...
> Feb 18 10:18:02 antigen MailScanner[16912]: SophosSAVI 3.78 (engine 2.18) recognizing 87516 viruses
> Feb 18 10:18:02 antigen MailScanner[16912]: SophosSAVI using 41 IDE files
> Feb 18 10:18:04 antigen MailScanner[16912]: lock.pl sees Config LockType =  flock
> Feb 18 10:18:04 antigen MailScanner[16912]: lock.pl sees have_module= 0
> Feb 18 10:18:04 antigen MailScanner[16912]: Using locktype = flock
> Feb 18 10:18:05 antigen MailScanner[16912]: New Batch: Found 155 messages waiting
> Feb 18 10:18:05 antigen MailScanner[16912]: New Batch: Scanning 30 messages, 350656 bytes
> Feb 18 10:18:05 antigen MailScanner[16912]: MCP Checks completed at 350656 bytes per second
> Feb 18 10:18:05 antigen MailScanner[16912]: Spam Checks completed at 350656 bytes per second
> Feb 18 10:18:05 antigen MailScanner[16912]: Created attachment dirs for 30 messages
> Feb 18 10:18:39 antigen MailScanner[16912]: Virus and Content Scanning: Starting
> Feb 18 10:18:39 antigen MailScanner[16912]: Commencing scanning by sophossavi...
> Feb 18 10:18:39 antigen MailScanner[16912]: INFECTED:: W32/Sircam-A:: ./i1IFGKCR016673/stephs.doc.lnk
> Feb 18 10:18:40 antigen MailScanner[16912]: Completed scanning by sophossavi
> Feb 18 10:18:40 antigen MailScanner[16912]: Virus Scanning: SophosSAVI found 1 infections
> Feb 18 10:18:40 antigen MailScanner[16912]: Infected message i1IFGKCR016673 came from 65.172.143.253
> Feb 18 10:18:40 antigen MailScanner[16912]: Virus Scanning: Found 1 viruses
> Feb 18 10:18:40 antigen MailScanner[16912]: Filename Checks: Possible Eudora *.lnk security hole attack (i1IFGKCR016673 steph's.doc.lnk)
> Feb 18 10:18:40 antigen MailScanner[16912]: Other Checks: Found 1 problems
> Feb 18 10:18:40 antigen MailScanner[16912]: Virus Scanning completed at 10018 bytes per second
> Feb 18 10:18:41 antigen MailScanner[16912]: About to deliver 29 messages
> Feb 18 10:18:41 antigen MailScanner[16912]: Uninfected: Delivered 29 messages
> Feb 18 10:18:41 antigen MailScanner[16912]: About to deliver 1 messages
> Feb 18 10:18:41 antigen MailScanner[16912]: Cleaned: Delivered 1 cleaned messages
> Feb 18 10:18:41 antigen MailScanner[16912]: Virus Processing completed at 350656 bytes per second
> Feb 18 10:18:41 antigen MailScanner[16912]: Disinfection completed at 350656 bytes per second
> Feb 18 10:18:41 antigen MailScanner[16912]: Batch completed at 9740 bytes per second (350656 / 36)
> Feb 18 10:18:41 antigen MailScanner[16912]: MailScanner child dying of old age

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