RE: 10.0 xC6

Hi, Neil, I started testing uc6/fc6 a few days ago, and ran into a really bad problem: very big memory leak in virtual memory segments. The strange thing is that 'onstat -g seg' shows, that 800 MB is used in 6 virtual segments: onstat -g seg IBM Informix Dynamic Server Version 10.00.UC6 -- On-Line (Prim) -- Up 1 days 12:05:35 -- 1672528 Kbytes Segment Summary: id key addr size ovhd class blkused blkfree 88997892 1381451777 44000000 791068672 241036 R 193129 3 89030661 1381451778 7326c000 409600000 13152 V 99992 8 89063430 1381451779 8b90c000 102400000 3776 V 24999 1 89096199 1381451780 91ab4000 102400000 3776 V 24997 3 89128968 1381451781 97c5c000 102400000 3776 V 25000 0 89161737 1381451782 9de04000 102400000 3776 V 24999 1 89194506 1381451783 a3fac000 102400000 3776 V 2498 22502 Total: - - 1712668672 - - 395614 22518 'onstat -g mem' only shows about 100MB in total allocated from virtual segments. Completely unclear, what happened to other 700MB... Same system (QA DB) was running without any problem under 10.0uc4, and never allocated anything beyond the first V segment. Hope to file PMR on this problem to IBM shortly. Actually, this is a 'level-1' problem: IDS 10.0uc6 is unusable (at least, for us) As for xC5, it had a very bad problem with HDR. I was happy, that problem is fixed in xC6 (I had PMR on that problem with IBM) ------------------------------------------ Alexey Sonkin -----Original Message----- From: informix-list-bounces@iiug.org [mailto:informix-list-bounces@iiug.org] On Behalf Of Neil Truby Sent: Sunday, February 04, 2007 6:58 PM To: informix-list@iiug.org Subject: 10.0 xC6 Does anyone have any experiences - good or bad - on IDS 10.0xC6? We have several customers on FC5 and all seems fine so far. We have one moving from 32-bit (10.0UC4W3) to 64-bit and I'm trying to decide if to move them to FC5, or give FC6 a go. All opinion gratefully received! -- Neil Truby t:01932 724027 Director m:07798 811708 Ardenta Limited e:neil.truby@ardenta.com _______________________________________________ Informix-list mailing list Informix-list@iiug.org http://www.iiug.org/mailman/listinfo/informix-list

On 14 Feb, 03:29, "Alexey Sonkin" <alex...@cidc.com> wrote: > Hi, Neil, > > I started testing uc6/fc6 a few days ago, and ran > into a really bad problem: very big memory leak > in virtual memory segments. > > The strange thing is that 'onstat -g seg' shows, > that 800 MB is used in 6 virtual segments: > > onstat -g seg> > IBM Informix Dynamic Server Version 10.00.UC6 -- On-Line (Prim) -- > Up 1 days 12:05:35 -- 1672528 Kbytes> > Segment Summary: > id key addr size ovhd class blkused blkfree > 88997892 1381451777 44000000 791068672 241036 R 193129 3 > 89030661 1381451778 7326c000 409600000 13152 V 99992 8 > 89063430 1381451779 8b90c000 102400000 3776 V 24999 1 > 89096199 1381451780 91ab4000 102400000 3776 V 24997 3 > 89128968 1381451781 97c5c000 102400000 3776 V 25000 0 > 89161737 1381451782 9de04000 102400000 3776 V 24999 1 > 89194506 1381451783 a3fac000 102400000 3776 V 2498 22502 > Total: - - 1712668672 - - 395614 22518 > > 'onstat -g mem' only shows about 100MB in total allocated from virtual > segments. Completely unclear, what happened to other 700MB... > What does onstat -g afr say? Please let us know what Tech Support say!

David, 'onstat -g afr' should be used with a specific memory pool from 'onstat -g mem' that has a big memory allocation. As I mentioned, 'onstat -g mem' doesn't show anything at all for this case: memory is leaking to nowhere. ------------------------------------------ Alexey Sonkin -----Original Message----- From: informix-list-bounces@iiug.org [mailto:informix-list-bounces@iiug.org] On Behalf Of david@smooth1.co.uk Sent: Wednesday, February 14, 2007 12:59 PM To: informix-list@iiug.org Subject: Re: 10.0 xC6 On 14 Feb, 03:29, "Alexey Sonkin" <alex...@cidc.com> wrote: > Hi, Neil, > > I started testing uc6/fc6 a few days ago, and ran > into a really bad problem: very big memory leak > in virtual memory segments. > > The strange thing is that 'onstat -g seg' shows, > that 800 MB is used in 6 virtual segments: > > onstat -g seg> > IBM Informix Dynamic Server Version 10.00.UC6 -- On-Line (Prim) -- > Up 1 days 12:05:35 -- 1672528 Kbytes> > Segment Summary: > id key addr size ovhd class blkused blkfree > 88997892 1381451777 44000000 791068672 241036 R 193129 3 > 89030661 1381451778 7326c000 409600000 13152 V 99992 8 > 89063430 1381451779 8b90c000 102400000 3776 V 24999 1 > 89096199 1381451780 91ab4000 102400000 3776 V 24997 3 > 89128968 1381451781 97c5c000 102400000 3776 V 25000 0 > 89161737 1381451782 9de04000 102400000 3776 V 24999 1 > 89194506 1381451783 a3fac000 102400000 3776 V 2498 22502 > Total: - - 1712668672 - - 395614 22518 > > 'onstat -g mem' only shows about 100MB in total allocated from virtual > segments. Completely unclear, what happened to other 700MB... > What does onstat -g afr say? Please let us know what Tech Support say! _______________________________________________ Informix-list mailing list Informix-list@iiug.org http://www.iiug.org/mailman/listinfo/informix-list

> > Does anyone have any experiences - good or bad - on IDS 10.0xC6? > > We have several customers on FC5 and all seems fine so far. > We have one > > moving from 32-bit (10.0UC4W3) to 64-bit and I'm trying to > decide if to move them to FC5, or give FC6 a go. > > All opinion gratefully received! > I quite like the feature in FC6 on Solaris with the ETX blade installed Dbaccess sysmaster <drop ETX-database> Entire instance crashes - that is real neat :-) Paul Watson Tel: +44 1414161772 Mob: +44 7818003457 Web: www.oninit.com Failure is not as frightening as regret. Attend IDUG 2007 San Jose, North America May 6-10, 2007 Visit http://www.iiug.org/conf for more information.