Optimize iRule for ASM

Which ASM version are you running (b version)?

BIG-IP Version is 9.4.7 330.35 and an HF2 and an engineering HF

 
  b version 
 Kernel: 
 Linux 2.4.21-9.4.7.320.0smp 
 Package: 
 BIG-IP Version 9.4.7 330.35 
 Hotfix HF2 Edition 
  
 Hot fixes: 
    CR100218 
    CR124714 
    CR125718 
    CR125853 
    CR126690 
    CR132165 
    CR132166 
    CR132167 
    CR132783 
 

And which platform are you running ASM on (b platform | head)?

The results of command:

 
  b platform | head 
 PLATFORM INFORMATION -- 
 |     Marketing Name: BIG-IP 8400 
 |     BIOS Rev: AMIBIOS(C)2003 American Megatrends, Inc.                                       8400V BIOS Version: OBJ-0099-01 Rev. V8400V170   Date:12/09/2005 
 |     base MAC: 00:01:D7:69:85:40 
 |     PVA Version: 10 
 +-> SYSTEM INFO 
 |     Type: D84 
 |     Chassis   serial: bip237237s   Level 200 part: 200-0242-15 REV A 
 |     Switch board   serial: PCA0116MW6ED   part: PCA-0116-05 REV A 
 |     Host board   serial: FX070611O090051   part: MOB-0019-06 REV B 
 

How many HTTP requests per second did you have going through ASM or the unit in total while the BD CPU graph was showing ~60% load?

We don't know exactly how many HTTP_requests/second. I attach a graph related with the traffic of the main web page...