Well context switches are really the processor switching between tasks or going between user mode and kernel mode tasks. A lot of time I think this can be due to the TYPE of application and what it does. I have a document imaging/managing software at a client that will get the context switches up in the 30 - 35,000 range with a low proc queue and proc utilization at about 60%. This software uses a tome of different types of databases (SQL, Oracle, and something else) as different backend servers and is a little graphic intense. The NICs, Memory, Disk, Proc all are still ok, but every time we get these things up to 30,000 performance starts to degrade. Now of course this is 30,000 steadily, not spikes. And only 27-30 users on DL 360 G2's Of course on the same hardware and builds I am hosting Office apps for like 50 and 60 users with context switches not a problem. Anyway, haven't found a relief for it yet. Hoping hyper threading has an effect on this. Ron Oglesby Senior Technical Architect =20 RapidApp Office 312.372.7188 Mobile 312.961.2380 email roglesby@xxxxxxxxxxxx =20 -----Original Message----- From: Schneider, Chad M. [mailto:CMSchneider@xxxxxxxxx]=20 Sent: Wednesday, March 12, 2003 11:20 AM To: 'thin@xxxxxxxxxxxxx' Subject: [THIN] Re: Context Switches I know one really spiked, as the chart now shows the 125,000 marker. -----Original Message----- From: Ron Oglesby [mailto:roglesby@xxxxxxxxxxxx] Sent: Wednesday, March 12, 2003 11:02 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Context Switches 100,000... Cooooool What type of hardware. DL 360s start to get slow at like 30,000 Ron Oglesby Senior Technical Architect =3D20 RapidApp Office 312.372.7188 Mobile 312.961.2380 email roglesby@xxxxxxxxxxxx =3D20 -----Original Message----- From: Schneider, Chad M. [mailto:CMSchneider@xxxxxxxxx]=3D20 Sent: Wednesday, March 12, 2003 10:50 AM To: 'thin@xxxxxxxxxxxxx' Subject: [THIN] Context Switches Any way to tell which app/apps are causing my large context switch usage? My servers run high all day, some spikes over 100,000. Chad M. Schneider Technology Analyst II Curwood, Inc. Phone: 920-303-7609 Pager: 920-909-7609 ********************************************************* This Week's Sponsor - RTO Software / TScale TScale increases terminal server capacity.=3D20 Get 30-40% more users per server to save $$$ and time.=3D20 Add users now! - not more servers. If you're using Citrix,=3D20 you must learn about TScale! Free 30-day eval: http://www.rtosoft.com/Enter.asp?ID=3D3D79 ********************************************************** For Archives, to Unsubscribe, Subscribe or=3D20 set Digest or Vacation mode use the below link: http://thethin.net/citrixlist.cfm ********************************************************* This Week's Sponsor - RTO Software / TScale TScale increases terminal server capacity.=20 Get 30-40% more users per server to save $$$ and time.=20 Add users now! - not more servers. If you're using Citrix,=20 you must learn about TScale! Free 30-day eval: http://www.rtosoft.com/Enter.asp?ID=3D79 ********************************************************** For Archives, to Unsubscribe, Subscribe or=20 set Digest or Vacation mode use the below link: http://thethin.net/citrixlist.cfm ********************************************************* This Week's Sponsor - RTO Software / TScale TScale increases terminal server capacity.=20 Get 30-40% more users per server to save $$$ and time.=20 Add users now! - not more servers. If you're using Citrix,=20 you must learn about TScale! Free 30-day eval: http://www.rtosoft.com/Enter.asp?ID=3D79 ********************************************************** For Archives, to Unsubscribe, Subscribe or=20 set Digest or Vacation mode use the below link: http://thethin.net/citrixlist.cfm ********************************************************* This Week's Sponsor - RTO Software / TScale TScale increases terminal server capacity. Get 30-40% more users per server to save $$$ and time. Add users now! - not more servers. If you're using Citrix, you must learn about TScale! Free 30-day eval: http://www.rtosoft.com/Enter.asp?ID=79 ********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thethin.net/citrixlist.cfm