Mladen, As mentioned earlier, I have lots of "times" funtion calls, which (my guess) relate to (60-70%)"IPC send completion sync" waits I got in statspack. Dont mean to fill your inboxes, but, pasting few truss lines: 26949: read(14, "01 O\0\006\0\0\0\0\011 i".., 2064) = 335 26949: times(0xFFBED228) = 225698576 26949: times(0xFFBED0D8) = 225698576 26949: times(0xFFBED228) = 225698576 26949: times(0xFFBED108) = 225698576 26949: times(0xFFBED108) = 225698576 26949: times(0xFFBED108) = 225698577 26949: times(0xFFBED108) = 225698577 26949: times(0xFFBECA08) = 225698577 26949: times(0xFFBECA08) = 225698577 26949: times(0xFFBECC88) = 225698577 26949: times(0xFFBECC88) = 225698577 26949: times(0xFFBED0D8) = 225698577
Thanks, Ravi. --- "Gogala, Mladen" <[EMAIL PROTECTED]> wrote: > Just for fun, have you tried using truss to find out > which calls > are being used? That might help you. > > Mladen Gogala > Oracle DBA > Phone:(203) 459-6855 > Email:[EMAIL PROTECTED] > > > -----Original Message----- > Sent: Thursday, July 10, 2003 8:14 PM > To: Multiple recipients of list ORACLE-L > > > Raj, > Yes. Timed_statistics=true. But I see the 'times' > even > in single instance(non-rac)database but relatively > called negligible number of times. > -Ravi. > --- "Jamadagni, Rajendra" > <[EMAIL PROTECTED]> wrote: > > You seem to have timed_statistics=TRUE right ?? in > > RAC you will ALWAYS see > > GCS pings ... basically as long as > > cluster_database=true, even if only one > > node is running, you will still see Oracle trying > to > > ping other instances. > > > > My guess is that's what is happening ... but I > could > > be very well wrong, I > > have RAC experience, but never tried to truss the > > top processes. > > > > Raj > > > ---------------------------------------------------------------------------- > > ---- > > Rajendra dot Jamadagni at nospamespn dot com > > All Views expressed in this email are strictly > > personal. > > QOTD: Any clod can have facts, having an opinion > is > > an art ! > > > > > > -----Original Message----- > > Sent: Thursday, July 10, 2003 12:30 PM > > To: Multiple recipients of list ORACLE-L > > > > > > Hello List, > > > > We are running Benchmark tests on Solaris 2-Node > > RAC. > > Consistently noticed the following : > > - Very high Kernel usage (averaging 45%) on TOP > > - Statspack has "IPC Send Completion sync" waits > > (70% > > Total ela time) > > - On trussing top process, found Oracle to be > > issuing > > huge number of "times" system calls in addition to > > read/writes(which I think are select/inserts). > > Has anyone noticed this in your environment. I am > > guessing these to be inter-instance pings, but > could > > not get any hits in Doc/Metalink to confirm this. > > "times" call is clocking lot of CPU. Is this > normal > > ? > > Any pointers would be helpful ? If this is out of > > context, is there a separate list for RAC? > > > > Thanks, > > Ravi. > > > > > > > > __________________________________ > > Do you Yahoo!? > > SBC Yahoo! 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