mysql query returning slowly

This is from our application I enabled profile in mysql to determine why an update took 20seconds. As you can see MySQL reported no where near that amount of duration took place. Is there any way I can dig into php and determine why mysql client libs are so slow (this is not using mysqlnd but mysql-client-libs on CentOS using 5.3.2) 04/06/2010 14:54:54 20.6899s UPDATE calls SET Result='Busy' WHERE CallID='144786' | Status | Duration | CPU_user | CPU_system | Context_voluntary | Context_involuntary | Block_ops_in | Block_ops_out | Messages_sent | Messages_received | Page_faults_major | Page_faults_minor | Swaps | ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ------------------------------------------------------------------ | starting | 0.000039 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | checking permissions | 0.000008 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | Opening tables | 0.000010 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | System lock | 0.000005 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | Table lock | 0.000006 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | init | 0.000036 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | Updating | 0.000099 | 0.001000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | end | 0.000023 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | query end | 0.000004 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | freeing items | 0.007410 | 0.000000 | 0.000000 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | logging slow query | 0.000004 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | | cleaning up | 0.000004 | 0.000000 | 0.000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | Thanks David Murphy