Followup - this system has a lot of kernel activity and I/O - (top typically shows CPU > 50% kernel) - but the hotkernel blorked with this (eventhough load avg was only ~2 and command line is responsive):
[EMAIL PROTECTED]:~ 1:41pm 114 # ./hotkernel Sampling... Hit Ctrl-C to end. dtrace: processing aborted: Abort due to systemic unresponsiveness FUNCTION COUNT PCNT I'm working my way down the toolkit list - any help on pinpointing the bottlenecks with the appropriate 1st pass tools appreciated. Here is some iotop output - nothing surprising here - sendmail, spamd and mailman (python) are generating I/O: 2008 Jan 21 13:49:54, load: 1.35, disk_r: 32 KB, disk_w: 2424 KB UID PID PPID CMD DEVICE MAJ MIN D BYTES 0 13413 13412 sendmail sd0 61 0 W 2048 0 13411 13406 sendmail sd0 61 0 W 4096 0 13409 13370 sendmail sd0 61 0 W 5120 0 3 0 fsflush sd0 61 0 W 8192 0 13420 1 sendmail sd0 61 0 W 22528 555 3809 3140 spamd sd0 61 0 R 32768 0 13419 496 sendmail sd0 61 0 W 41984 0 13412 496 sendmail sd0 61 0 W 44032 0 13370 496 sendmail sd0 61 0 W 50688 0 13413 1 sendmail sd0 61 0 W 51712 0 13406 496 sendmail sd0 61 0 W 71680 0 13414 496 sendmail sd0 61 0 W 96256 35 24406 24400 python2.4 sd0 61 0 W 172032 0 0 0 sched sd0 61 0 W 318464 555 3809 3140 spamd sd0 61 0 W 405504 35 24409 24400 python2.4 sd0 61 0 W 1006592 Ideally I'd like to know what the fixable (tunable) bottlenecks are on a system that otherwise has plenty of CPU and memory available Thanks -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fletcher Cocquyt Sent: Monday, January 21, 2008 1:39 PM To: dtrace-discuss@opensolaris.org Subject: [dtrace-discuss] tcptop error: failed to resolveSS_TCP_FAST_ACCEPT: Unknown variable name Hi, I am trying to debug the bottle neck(s) in a Solaris 10 Mailman/Spamassassin/Sendmail VMWare VM and get the following error from tcptop: [EMAIL PROTECTED]:~ 1:35pm 103 # ./tcptop dtrace: failed to compile script /dev/fd/11: line 40: failed to resolve SS_TCP_FAST_ACCEPT: Unknown variable name thanks for any insight, Fletcher. _______________________________________________ dtrace-discuss mailing list dtrace-discuss@opensolaris.org