Patch Name: PHKL_17573 Patch Description: s700 10.20 ki/nfs vasusage, ACE 2 bundle cumulative patch Creation Date: 99/02/18 Post Date: 99/02/26 Hardware Platforms - OS Releases: s700: 10.20 Products: N/A Filesets: OS-Core.CORE-KRN Automatic Reboot?: Yes Status: General Release Critical: No Path Name: /hp-ux_patches/s700/10.X/PHKL_17573 Symptoms: PHKL_17573: Slow NFS-V3 and ClearCase MVFS write performance with midaemon running. PHKL_15185: No visible symptoms. This is a no-change superseding patch to satisfy internal HP requirements. PHKL_13967: This patch is part of the 10.20 ACE 2 bundle which adds networking enhancements to 10.20. New networking features supported in ACE 2 include NFS Version 3.0, AutoFS, and CacheFS. PHKL_8922: On hp-ux 9.04 (S800) and 10.x (S700/S800), large MP systems with a high switch rate result in unacceptable level of KI CPU overhead. Moreover, the KI has the processor spinlock during this time with interrupts disabled! We have observed on a 10.10 TPC benchmark system that enabling the swtch trace in the KI reduces TPC throughput by 10%. Defect Description: PHKL_17573: The performance tools Glance and MeasureWare use the midaemon process to access the internal hp-ux KI interface. The kernel routine ki_get_devid records the device ID for I/Os by calling vop_getattr, which can cause performance problems for NFS and MVFS (ClearCase) I/Os. For hp-ux 11.0, PHKL_16074 addresses this issue. PHKL_15185: Remove fileset-level checkinstall script added for Networking Enhancements bundle to avoid manufacturing conflicts. PHKL_13967: New functionality to support networking features in 10.20. PHKL_8922: The KI swtch trace generation code in the kernel walks all pregions in the vas of the swtched process. PTC's MI and performance tools do not need rss values updated every context switch - the extra overhead is not worth the small increase in accuracy. It is sufficient to copy the pid's vas_t->va.prss+vas_t->va.rss (private + shared) value which is updated every 5 seconds by statdaemon. SR: 4701339945 4701378117 D500419812 Patch Files: /usr/conf/lib/libhp-ux.a(sys_ki.o) what(1) Output: /usr/conf/lib/libhp-ux.a(sys_ki.o): sys_ki.c $Date: 99/02/07 17:13:01 $ $Revision: 1.21.98.15 $ PATCH_10.20 (PHKL_17573) cksum(1) Output: 2602112732 36660 /usr/conf/lib/libhp-ux.a(sys_ki.o) Patch Conflicts: None Patch Dependencies: None Hardware Dependencies: None Other Dependencies: None Supersedes: PHKL_8922 PHKL_13967 PHKL_15185 Equivalent Patches: PHKL_16074: s700: 11.00 Patch Package Size: 100 KBytes Installation Instructions: Please review all instructions and the Hewlett-Packard SupportLine User Guide or your Hewlett-Packard support terms and conditions for precautions, scope of license, restrictions, and, limitation of liability and warranties, before installing this patch. ------------------------------------------------------------ 1. Back up your system before installing a patch. 2. Login as root. 3. Copy the patch to the /tmp directory. 4. Move to the /tmp directory and unshar the patch: cd /tmp sh PHKL_17573 5a. For a standalone system, run swinstall to install the patch: swinstall -x autoreboot=true -x match_target=true \ -s /tmp/PHKL_17573.depot 5b. For a homogeneous NFS Diskless cluster run swcluster on the server to install the patch on the server and the clients: swcluster -i -b This will invoke swcluster in the interactive mode and force all clients to be shut down. WARNING: All cluster clients must be shut down prior to the patch installation. Installing the patch while the clients are booted is unsupported and can lead to serious problems. The swcluster command will invoke an swinstall session in which you must specify: alternate root path - default is /export/shared_root/OS_700 source depot path - /tmp/PHKL_17573.depot To complete the installation, select the patch by choosing "Actions -> Match What Target Has" and then "Actions -> Install" from the Menubar. 5c. For a heterogeneous NFS Diskless cluster: - run swinstall on the server as in step 5a to install the patch on the cluster server. - run swcluster on the server as in step 5b to install the patch on the cluster clients. By default swinstall will archive the original software in /var/adm/sw/patch/PHKL_17573. If you do not wish to retain a copy of the original software, you can create an empty file named /var/adm/sw/patch/PATCH_NOSAVE. Warning: If this file exists when a patch is installed, the patch cannot be deinstalled. Please be careful when using this feature. It is recommended that you move the PHKL_17573.text file to /var/adm/sw/patch for future reference. To put this patch on a magnetic tape and install from the tape drive, use the command: dd if=/tmp/PHKL_17573.depot of=/dev/rmt/0m bs=2k Special Installation Instructions: None