Unexpected TMOS utalsiation hit

Aaron,

Indeed, the timing stats tell us its not something thats eating many CPU cycles. There has to be an expensive operation which the iRule is causing tmos to do, but is not directly executed in iRule (Or it would / should show in the timings)

I'm looking at TMOS CPU utilisation from the graphs, but have also dumped the raw RRD files which seem to agree with the graphs.

Have done about 3 windows with a looped curl, and got the following TMstats - this it not hitting it that hard

 
  CPU:   5% busy    95% idle    0% sleep                                                     Thu Jan 28 19:19:56 2010 
  
        Memory Allocated                                                   New Flow     Old Flow         Poll 
    34,248,152 / 3,472,883,712                                               14,169      441,524          135 Cycles 
   [  .  :  .  |  .  :  .  ]                                                     16          215   14,651,347 Total 
  
          Tcp            Crypto Ops       Random Class                                                    106 Timers 
           56 Open            3 (total)      407 (total)                                                    0 Stats 
           15 Accepts         0 rsa            0 Pseudo 
           13 Connects        0 full hs        0 Entropy                                         Virtual Class 
              Wait            5 record       407 Secure                                       12,349,665 (total) 
            0 Rtx             0 cipher                                                        10,485,780 mco db 
           32 Del ACK        -1 (unseen)                                                       1,399,046 ssl 
                                                                                                 258,108 tcl 
                                                                                                 206,731 (unseen) 
  
                                                                                                    Umem Class 
                                                                                                  53,519 (total) 
                                                                                                  47,632 ssl_session 
                                                                                                   1,559 listener 
                                                                                                   1,333 xfrag 
                                                                                                     727 poolmbr 
                                                                                                     582 laddr 
                                                                                                     565 pool 
                                                                                                     436 vaddr 
                                                                                                     306 packet 
                                                                                                     158 selfip 
                                                                                                      66 connflow 
                                                                                                      31 rt_entry 
                                                                                                      19 arp_entry 
                                                                                                      15 cn_key 
                                                                                                      15 proxy_ctx cac 
                                                                                                      15 ssl_profile 
                                                                                                      12 http_data 
                                                                                                      11 rtm_internal 
                                                                                                       9 lasthop 
                                                                                                       9 ssl_cn 
                                                                                                       8 ncache_entry 
                        vnic                                                                           4 CallFrame 
          118,280b rx        link       125,928b tx                                                    3 ssl_shim 
 [ . : . | . : . ]       bg       [ . : . | . : . ]                                                    1 mpi_recv_desc 
          471,792b rx  1,000 link       129,536b tx                                                    1 shaper_domain 
 [ . : . | . : . ]       bg       [ . : . | . : . ]                                                    1 ssl_hs 
           21,616b rx  1,000 link       118,496b tx                                                    1 ssl_keys 
 [ . : . | . : . ]                [ . : . | . : . ] 
                0b rx      0 link             0b tx 
 [ . : . | . : . ]                [ . : . | . : . ] 
                0b rx      0 link             0b tx 
 [ . : . | . : . ]                [ . : . | . : . ] 
                0b rx      0 link             0b tx 
 [ . : . | . : . ]                [ . : . | . : . ] 
                0b rx      0 link             0b tx 
 [ . : . | . : . ]                [ . : . | . : . ] 
                0b rx      0 link             0b tx 
 [ . : . | . : . ]                [ . : . | . : . ] 
                0b rx      0 link             0b tx 
  
 

Steve