Performance Tuning Siebel Software on the Sun Platform

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this is not a big disadvantage, as the standard Sun machine configuration has ample memory. The v440 has 4 CPUs with 16Gbytes of memory. A typical <strong>Siebel</strong> user on the Sun platform uses about 4Mbytes of memory while the CPU use is much higher in comparison, so the higher memory footprint is a beneficial trade off. How does one enable MTmalloc? 1. Edit the file $SIEBEL_ROOT/bin/siebmtshw. 2. Add the line LD_PRELOAD=/usr/lib/libmtmalloc.so. 3. Save the file and bounce <strong>Siebel</strong> servers. 4. After <strong>Siebel</strong> restarts, verify that MTmalloc is enabled by executing the following command: $%pldd -p | grep -i mtmalloc 7.1.2 Solaris Alternate Threads Library Usage Solaris 8 OS provides an alternate threads implementation with a one-level model (1x1). User-level threads are associated one-to-one with lightweight processes (LWPs). This implementation is simpler than the standard (MxN) two-level model in which user-level threads are multiplexed over possibly fewer lightweight processes. The 1x1 model was used on <strong>Siebel</strong> Application Servers and provided good performance improvements to the <strong>Siebel</strong> multithreaded applications because the <strong>Siebel</strong> 7.5.2 alternate threads library is enabled by default. If you are using a version of <strong>Siebel</strong> older than 7.5.2 then the alternate threads library is not enabled by default. Procedure to enable the alt thread feature: 1. Update the env variable for the UNIX® user that runs <strong>Siebel</strong> server. 2. If you are using Korn shell, open up the .profile for the <strong>Siebel</strong> owner and add this to the bottom of the file. 3. Export LD_LIBRARY_PATH=/usr/lib/lwp:$LD_LIBRARY_PATH. 4. Stop <strong>Siebel</strong>. 5. Exit from shell and log in again so the change in .profile is in effect. 6. Start <strong>Siebel</strong>. To verify if alt thread is indeed being used: pldd -p | grep -i lwp The preceding command should return the current Solaris lib, which is /usr/lib/lwp/. <strong>Performance</strong> <strong>Tuning</strong> <strong>Siebel</strong> <strong>Software</strong> on the Sun Platform Page 22
7.1.3 The Solaris Kernel and TCP/IP <strong>Tuning</strong> Parameters for <strong>Siebel</strong> Server Parameter Scope Default Tuned Value Value shmsys:shminfo_shmmax /etc/system 0xffffffffffffffff shmsys:shminfo_shmmin /etc/system 100 shmsys:shminfo_shmseg /etc/system 200 semsys:seminfo_semmns /etc/system 12092 semsys:seminfo_semmsl /etc/system 512 semsys:seminfo_semmni /etc/system 4096 semsys:seminfo_semmap /etc/system 4096 semsys:seminfo_semmnu /etc/system 4096 semsys:seminfo_semopm /etc/system 100 semsys:seminfo_semume /etc/system 2048 msgsys:msginfo_msgmni /etc/system 2048 msgsys:msginfo_msgtql /etc/system 2048 msgsys:msginfo_msgssz /etc/system 64 msgsys:msginfo_msgseg /etc/system 32767 msgsys:msginfo_msgmax /etc/system 16384 msgsys:msginfo_msgmnb /etc/system 16384 ip:dohwcksum (for resonate /etc/system gbic) 0 rlim_fd_max /etc/system 1024 16384 rlim_fd_cur /etc/system 64 16384 sq_max_size /etc/system 2 0 tcp_time_wait_interval ndd /dev/tcp 240000 60000 tcp_conn_req_max_q ndd /dev/tcp 128 1024 tcp_conn_req_max_q0 ndd /dev/tcp 1024 4096 tcp_ip_abort_interval ndd /dev/tcp 480000 60000 tcp_keepalive_interval ndd /dev/tcp 7200000 900000 tcp_rexmit_interval_initial ndd /dev/tcp 3000 3000 tcp_rexmit_interval_max ndd /dev/tcp 240000 10000 tcp_rexmit_interval_min ndd /dev/tcp 200 3000 tcp_smallest_anon_port ndd /dev/tcp 32768 1024 tcp_slow_start_initial ndd /dev/tcp 1 2 tcp_xmit_hiwat ndd /dev/tcp 8129 32768 tcp_fin_wait_2_flush_interval ndd/dev/tcp 67500 675000 tcp_recv_hiwat ndd /dev/tcp 8129 32768 Table 7.1.3 7.2 <strong>Tuning</strong> <strong>Siebel</strong> Server for the Solaris OS The key factor in tuning <strong>Siebel</strong> server performance is the number of threads or users per <strong>Siebel</strong> object manager (OM) process. <strong>Siebel</strong> server architecture consists of multithreaded server processes servicing different business needs. Currently, <strong>Siebel</strong> is <strong>Performance</strong> <strong>Tuning</strong> <strong>Siebel</strong> <strong>Software</strong> on the Sun Platform Page 23
Page 1 and 2: Performance <stron
Page 3 and 4: Abstract This paper discusses the p
Page 5 and 6: 7.6.6 Oracle Parameters Tun
Page 7 and 8: 1 Tuning for Price
Page 9 and 10: 2 Siebel Applicati
Page 11 and 12: 3 Optimal Sun/Siebel</stron
Page 13 and 14: 3.1 Hardware and Software</
Page 15 and 16: 5 10,000 Concurrent Users: Test Res
Page 17 and 18: 6 Siebel Scalabili
Page 19 and 20: Cost per Siebel Us
Page 21: 7.1 Tuning Solaris
Page 25 and 26: In the file $SIEBEL_ROOT/bin/enu/ua
Page 27 and 28: 7.2.3 Assignment Manager Tu
Page 29 and 30: MQ series parameter tuning: PERFQMG
Page 31 and 32: Investigating the Reason for the Fa
Page 33 and 34: let a Siebel proce
Page 35 and 36: Description The reason for this sym
Page 37 and 38: Parameter Scope Default Tuned Value
Page 39 and 40: 7.6 Tuning <strong
Page 41 and 42: 86 MB/second 57 MB/second Figure 7.
Page 43 and 44: DATA_51200K INDX_512K DATA_5120K TE
Page 45 and 46: 7.6.4 Solaris MPSS Tuning</
Page 47 and 48: Siebel Object Name
Page 49 and 50: instance_name=oramst job_queue_proc
Page 51 and 52: ORAPERF.S_PRI_LST T4 WHERE T4.PAYME
Page 53 and 54: the database during peak load. In t
Page 55 and 56: use connection pooling, so you woul
Page 57 and 58: Oracle Database Server 1. Larger th
Page 59 and 60: 160 siebelapp2_1 eSalesObjMgr_enu 1
Page 61 and 62: 9.10 To Produce a Stack Trace for t
Page 63 and 64: Count indv cuml rcnt nsec Lock Call
Page 65 and 66: 5. Once the user has stopped at the
Page 67 and 68: 10 Appendix A: Transaction Response
Page 69 and 70: eSls1_115DDSubCategory1.3 0.125 0.1
Page 71 and 72: CC3_2newSolution 0.047 0.136 3.281
Page 73 and 74:
11 Appendix B: Database Objects Gro
Page 75 and 76:
S_OPTY_BU_M8 INDEX 2,334,720 S_ORDE
Page 77 and 78:
log file parallel write 550,101 515
Page 79:
Acknowledgements Thanks to
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