Migrating Java Applications to HP-UX

Here is an example of partial output from running the glance adviser script:

GBLH: date time swap nfile cpu_tot cpu_sys cpu_usr run_q mem_virt mem_res pageout_rate

pageout_rate_cum b

ufcache_hit_pct disk_io net_in_pkt_rate net_in_err_rate net_out_pkt_rate net_out_err_rate

GBL: 05/28/2010 13:33:00 16 1 50 5 46 0 7995mb 21.45 0 0

99.30 1.60

12471 0 13779 0

PH: proc_name pid cpu cpu_sys cpu_usr vss rss data_vss data_rss threads files io disk_io

P: java 28818 323.60 27.30 296.30 3534380kb 3401580kb 77660 77660 89

173 0.00

0.00

PSH: syscall_name count count_cum rate rate_cum total_time total_time_cum

PS: read 281334 550369 28417.5 18345.6 107.62 209.63

PS: write 34005 65958 3434.8 2198.6 0.09 0.17

PS: ioctl 11559 22372 1167.5 745.7 9.52 18.31

PS: poll 11337 21990 1145.1 733.0 20.02 40.03

PS: send 144508 283858 14596.7 9461.9 1.62 3.17

PS: sched_yield 447103 1151559 45161.9 38385.3 0.40 1.00

PS: ksleep 17466 31275 1764.2 1042.5 403.69 601.73

PS: kwakeup 17392 31131 1756.7 1037.7 0.04 0.06

Other Tools

If lower-level analysis is required, additional tools are available such as HP caliper, tusc, gdb and

others. The standard JDK tool set is available as well.

See Java Tools for HP-UX: Quick Start and Migration Guide for a complete list.

Configuring Patches and Kernel Parameters for Java on

HP-UX

When migrating a Java application from another platform to HP-UX, make sure the machine is set up

with the proper patches required by Java, and the recommended kernel parameters are set

appropriately. HPjconfig is a configuration tool to help you set up patches and kernel parameters.

To see the patches required for Java, refer to the following website:

http://ftp.hp.com/pub/softlib/hpuxjava-patchinfo/index.html

HPjconfig provides recommendations for the following kernel parameters:

maxusers

nproc

max_thread_proc

nkthread

nfile

maxfiles

maxfiles_lim

maxdsiz

maxdsize_64bit

ncallout

To download HPjconfig (HPjconfig-3.2.00.tar.gz), go to:

https://h20392.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=HPJCONFIG

HPjconfig can be run in GUI mode or non-GUI (command-line) mode. In either mode, HPjconfig

generates a summary of configuration information in a log file. The default name is:

HPjconfig_<hostname>_<date>_<timestamp>.log