How to identify processor manager req. for GS1280?

[Clark Powell]

We recently move our GE/Cache application from a 4 processor ES45 to an eight processor GS1280. I understand that at a certain point the number of processors will dictate that one processor be used exclusively for processor management for efficiency; I just don't know at what point that occurs. Could anybody give me some suggestions for deturmining this?

thanks
Clark Powell

below are the present processor stats.
ALPHAD>
ALPHAD> sho cpu/full

System: ALPHAD, hp AlphaServer GS1280 7/1150

SMP execlet = 3 : Enabled : Streamlined.
Config tree = Version 6
Primary CPU = 0
HWRPB CPUs = 64
Page Size = 8192
Revision Code =
Serial Number = AY40301579
Default CPU Capabilities:
System: QUORUM RUN
Default Process Capabilities:
System: QUORUM RUN

CPU 0 State: RUN CPUDB: 82452000 Handle: 00002680
Owner: 000007C0 Current: 000007C0 Partition 0 (ALPHAD)
ChgCnt: 13 State: Present, Primary
Process: * None *
Capabilities:
System: PRIMARY QUORUM RUN RAD0
Slot Context: 9899C180
CPU - State..........: RC, PA, PP, CV, PV, PMV, PL
Type...........: EV7 (21364), Minor = 5
Speed..........: 1150 Mhz
Variation......: VAX FP, IEEE FP, Primary Eligible
Serial Number..:
Revision.......:
Halt Request...: 0
Software Comp..: 0.0
PALCODE - Revision Code..: 2.11-01
Compatibility..: 25
Max Shared CPUs: 256
Memory Space..: Physical = 00000000.00000000 Length = 0
Scratch Space..: Physical = 00000000.00000000 Length = 0
Bindings:
NETACP PID = 22C00824 Reason: PRIMARY Capability
Fastpath: * None *
Features:
Autostart - Enabled.
Fastpath - Selection enabled as Preferred CPU.

CPU 1 State: RUN CPUDB: 8254F180 Handle: 00005200
Owner: 000007C0 Current: 000007C0 Partition 0 (ALPHAD)
ChgCnt: 13 State: Present, Reassignable
Process: * None *
Capabilities:
System: QUORUM RUN RAD0
Slot Context: 9899C400
CPU - State..........: RC, PA, PP, CV, PV, PMV, PL
Type...........: EV7 (21364), Minor = 5
Speed..........: 1150 Mhz
Variation......: VAX FP, IEEE FP, Primary Eligible
Serial Number..:
Revision.......:
Halt Request...: 0
Software Comp..: 0.0
PALCODE - Revision Code..: 2.11-01
Compatibility..: 25
Max Shared CPUs: 256
Memory Space..: Physical = 00000000.00000000 Length = 0
Scratch Space..: Physical = 00000000.00000000 Length = 0
Bindings: * None *
Fastpath:
PKA0
EIA0
EIB0
EWA0
FGA0
Features:
Autostart - Enabled.
Fastpath - Selection enabled as Preferred CPU.

CPU 2 State: RUN CPUDB: 82550180 Handle: 00007B80
Owner: 000007C0 Current: 000007C0 Partition 0 (ALPHAD)
ChgCnt: 13 State: Present, Reassignable
Process: * None *
Capabilities:
System: QUORUM RUN RAD0
Slot Context: 9899C680
CPU - State..........: RC, PA, PP, CV, PV, PMV, PL
Type...........: EV7 (21364), Minor = 5
Speed..........: 1150 Mhz
Variation......: VAX FP, IEEE FP, Primary Eligible
Serial Number..:
Revision.......:
Halt Request...: 0
Software Comp..: 0.0
PALCODE - Revision Code..: 2.11-01
Compatibility..: 25
Max Shared CPUs: 256
Memory Space..: Physical = 00000000.00000000 Length = 0
Scratch Space..: Physical = 00000000.00000000 Length = 0
Bindings: * None *
Fastpath:
PEA0
Features:
Autostart - Enabled.
Fastpath - Selection enabled as Preferred CPU.

CPU 3 State: RUN CPUDB: 82551180 Handle: 00009180
Owner: 000007C0 Current: 000007C0 Partition 0 (ALPHAD)
ChgCnt: 13 State: Present, Reassignable
Process: * None *
Capabilities:
System: QUORUM RUN RAD0
Slot Context: 9899C900
CPU - State..........: RC, PA, PP, CV, PV, PMV, PL
Type...........: EV7 (21364), Minor = 5
Speed..........: 1150 Mhz
Variation......: VAX FP, IEEE FP, Primary Eligible
Serial Number..:
Revision.......:
Halt Request...: 0
Software Comp..: 0.0
PALCODE - Revision Code..: 2.11-01
Compatibility..: 25
Max Shared CPUs: 256
Memory Space..: Physical = 00000000.00000000 Length = 0
Scratch Space..: Physical = 00000000.00000000 Length = 0
Bindings: * None *
Fastpath:
BG0
Features:
Autostart - Enabled.
Fastpath - Selection enabled as Preferred CPU.

CPU 4 State: RUN CPUDB: 82552180 Handle: 0000BB00
Owner: 000007C0 Current: 000007C0 Partition 0 (ALPHAD)
ChgCnt: 13 State: Present, Reassignable
Process: * None *
Capabilities:
System: QUORUM RUN RAD0
Slot Context: 9899CB80
CPU - State..........: RC, PA, PP, CV, PV, PMV, PL
Type...........: EV7 (21364), Minor = 5
Speed..........: 1150 Mhz
Variation......: VAX FP, IEEE FP, Primary Eligible
Serial Number..:
Revision.......:
Halt Request...: 0
Software Comp..: 0.0
PALCODE - Revision Code..: 2.11-01
Compatibility..: 25
Max Shared CPUs: 256
Memory Space..: Physical = 00000000.00000000 Length = 0
Scratch Space..: Physical = 00000000.00000000 Length = 0
Bindings: * None *
Fastpath:
EWB0
FGB0
Features:
Autostart - Enabled.
Fastpath - Selection enabled as Preferred CPU.

CPU 5 State: RUN CPUDB: 82553200 Handle: 0000D100
Owner: 000007C0 Current: 000007C0 Partition 0 (ALPHAD)
ChgCnt: 13 State: Present, Reassignable
Process: * None *
Capabilities:
System: QUORUM RUN RAD0
Slot Context: 9899CE00
CPU - State..........: RC, PA, PP, CV, PV, PMV, PL
Type...........: EV7 (21364), Minor = 5
Speed..........: 1150 Mhz
Variation......: VAX FP, IEEE FP, Primary Eligible
Serial Number..:
Revision.......:
Halt Request...: 0
Software Comp..: 0.0
PALCODE - Revision Code..: 2.11-01
Compatibility..: 25
Max Shared CPUs: 256
Memory Space..: Physical = 00000000.00000000 Length = 0
Scratch Space..: Physical = 00000000.00000000 Length = 0
Bindings: * None *
Fastpath:
PKB0
Features:
Autostart - Enabled.
Fastpath - Selection enabled as Preferred CPU.

CPU 6 State: RUN CPUDB: 82554200 Handle: 0000FA80
Owner: 000007C0 Current: 000007C0 Partition 0 (ALPHAD)
ChgCnt: 13 State: Present, Reassignable
Process: * None *
Capabilities:
System: QUORUM RUN RAD0
Slot Context: 9899D080
CPU - State..........: RC, PA, PP, CV, PV, PMV, PL
Type...........: EV7 (21364), Minor = 5
Speed..........: 1150 Mhz
Variation......: VAX FP, IEEE FP, Primary Eligible
Serial Number..:
Revision.......:
Halt Request...: 0
Software Comp..: 0.0
PALCODE - Revision Code..: 2.11-01
Compatibility..: 25
Max Shared CPUs: 256
Memory Space..: Physical = 00000000.00000000 Length = 0
Scratch Space..: Physical = 00000000.00000000 Length = 0
Bindings: * None *
Fastpath: * None *
Features:
Autostart - Enabled.
Fastpath - Selection enabled as Preferred CPU.

CPU 7 State: RUN CPUDB: 82555200 Handle: 00011080
Owner: 000007C0 Current: 000007C0 Partition 0 (ALPHAD)
ChgCnt: 13 State: Present, Reassignable
Process: UX2KSDRV_VMCROU PID: 22C009E6
Capabilities:
System: QUORUM RUN RAD0
Slot Context: 9899D300
CPU - State..........: RC, PA, PP, CV, PV, PMV, PL
Type...........: EV7 (21364), Minor = 5
Speed..........: 1150 Mhz
Variation......: VAX FP, IEEE FP, Primary Eligible
Serial Number..:
Revision.......:
Halt Request...: 0
Software Comp..: 0.0
PALCODE - Revision Code..: 2.11-01
Compatibility..: 25
Max Shared CPUs: 256
Memory Space..: Physical = 00000000.00000000 Length = 0
Scratch Space..: Physical = 00000000.00000000 Length = 0
Bindings: * None *
Fastpath: * None *
Features:
Autostart - Enabled.
Fastpath - Selection enabled as Preferred CPU.

[Volker Halle]

Clark,

OpenVMS itself does not use one processor for 'processor management'. Some functions can only be executed on the primary CPU (e.g. timekeeping), but everything else is distributed.

You could dedicate a certain CPU exclusively to the lock manager or TCPIP, but that's up to you.

Don't know about GE/cache - if your question was directed against this product.

Volker.

[Andy Bustamante]

As Volker points out, you may be thinking of the dedicated lock manager. This may or may not have an impact on your system's performance. Use $ MONITOR MODE and check "MP Synchronization" over time. T4 will also provide this data.

Another option is, try it. This is a dynamic change and you can enable/disable the dedicated lock manger on the fly. In some cases it can make a noticeable difference in database response. When originally introduced, VMS Engineering provided "it depends" as the definate answer on enabling it for your environment for servers with more than 4 CPUs.

Bottom line, schedule time and benchmark before and after. Don't forget to monitor CPU resouces as well, you'll be dedicating one CPU for this process.

Andy Bustamante

[Hoff]

Also look at what is obscurely known as Fast Path; at distributing I/O completion across your available processors.

http://h71000.www7.hp.com/doc/82final/5841/5841pro_069.html