https://community.hpe.com/t5/operating-system-hp-ux/cpu-usage/m-p/2575056#M31019 What CDE cumulative patches do you have installed on your systems? I have found the following in CDE cum patches.<BR /><BR />dtlogin performance degradation because of large buffer size.<BR /><BR />using sleep(1) decreased dtlogin performance.<BR /><BR />dtlogin consumes CPU after it reaches ~2000 open pipes.<BR /><BR />I suggest you update your CDE cumulative patch for your 11.x systems.<BR /><BR />HTH,<BR /><BR />Vito<BR /> Tue, 04 Sep 2001 20:20:03 GMT Vito Sarducci 2001-09-04T20:20:03Z https://community.hpe.com/t5/operating-system-hp-ux/cpu-usage/m-p/2575055#M31018 Hi experts<BR /> I have 552Mhz processor in a K-460 Hp 9000 running Hp-UX 11.0. My problem is when some users log on the 'dtsession' shows nearly 98% CPU usage.<BR /> This keeps showing as if the users are on even inspite of their logging out. I have tried manually to kill the process which were consuming the CPU, I need to know whats the permanent fix for this. Which Kernel parameters do I need to tune or increase to avoid this. <BR /> Thanks in advance<BR />Shiv Tue, 04 Sep 2001 19:23:36 GMT https://community.hpe.com/t5/operating-system-hp-ux/cpu-usage/m-p/2575055#M31018 ShivKumar_1 2001-09-04T19:23:36Z https://community.hpe.com/t5/operating-system-hp-ux/cpu-usage/m-p/2575056#M31019 What CDE cumulative patches do you have installed on your systems? I have found the following in CDE cum patches.<BR /><BR />dtlogin performance degradation because of large buffer size.<BR /><BR />using sleep(1) decreased dtlogin performance.<BR /><BR />dtlogin consumes CPU after it reaches ~2000 open pipes.<BR /><BR />I suggest you update your CDE cumulative patch for your 11.x systems.<BR /><BR />HTH,<BR /><BR />Vito<BR /> Tue, 04 Sep 2001 20:20:03 GMT https://community.hpe.com/t5/operating-system-hp-ux/cpu-usage/m-p/2575056#M31019 Vito Sarducci 2001-09-04T20:20:03Z