CURRENT: make -jX buildworld doesn't work

Wed Mar 14 13:47:33 UTC 2012

This is no compalin, since make buildworld works with one thread.

But I'd like to report a funny thing I witnessed.

On two boxes equipted with Core2Dou CPUS (E8500,  2 cores/threads,
Q6600, 4 cores/threads) a parallel make buildworld works fine with the
most recent sources of FreeBSD 10.0-CURRENT/amd64 (both boxes have 8 GB
RAM, both boxes use a very close/similar setup and configuration).

I moved in my lab towards a brand new Sandy-Bridge-E box with 32GB RAM
and the CPU is a Core i7-3930X with six cores/12 threads. On this box,
even "make buildworld" with -j2 fails to build. It builds fine with a
vanilla "make buildworld".

Also funny is, that even with only one thread, the 3 GHz Core2Duo
methusalem systems "outperform" in compile time the 3,2 GHZ driven Intel
youngster.

Maybe there is an issue in FreeBSD 10 with the TURBO BOOST? I'm a bit
time constraint now, but I'm willing to do some tests with advices from
the experts.

Lets give you some informations I think it could be valuable. Please
request more, if this isn't sufficient.

I realize/I'm aware that both hardware and OS are brandnew! But
hopefully this is something important and could be "fixed" - if my
observation is a real observation ...

Regards,
Oliver

KERNEL:

# CPU frequency control
device          cpufreq
device          cpuctl
device          nvram
device          coretemp

/etc/rc.conf:
performance_cx_lowest="HIGH"    # Online CPU idle state
performance_cpu_freq="NONE"     # Online CPU frequency
economy_cx_lowest="HIGH"        # Offline CPU idle state
economy_cpu_freq="NONE"         # Offline CPU frequency

#> sysctl kern.timecounter
kern.timecounter.tc.i8254.mask: 65535
kern.timecounter.tc.i8254.counter: 52702
kern.timecounter.tc.i8254.frequency: 1193182
kern.timecounter.tc.i8254.quality: 0
kern.timecounter.tc.HPET.mask: 4294967295
kern.timecounter.tc.HPET.counter: 2109995661
kern.timecounter.tc.HPET.frequency: 14318180
kern.timecounter.tc.HPET.quality: 950
kern.timecounter.tc.ACPI-fast.mask: 16777215
kern.timecounter.tc.ACPI-fast.counter: 3590445
kern.timecounter.tc.ACPI-fast.frequency: 3579545
kern.timecounter.tc.ACPI-fast.quality: 900
kern.timecounter.tc.TSC-low.mask: 4294967295
kern.timecounter.tc.TSC-low.counter: 1510440780
kern.timecounter.tc.TSC-low.frequency: 12537463
kern.timecounter.tc.TSC-low.quality: -100
kern.timecounter.stepwarnings: 0
kern.timecounter.hardware: HPET
kern.timecounter.choice: TSC-low(-100) ACPI-fast(900) HPET(950) i8254(0)
dummy(-1000000)
kern.timecounter.tick: 5
kern.timecounter.invariant_tsc: 1
kern.timecounter.smp_tsc: 0

#
#> dmesg | grep cpu
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
 cpu2 (AP): APIC ID:  2
 cpu3 (AP): APIC ID:  3
 cpu4 (AP): APIC ID:  4
 cpu5 (AP): APIC ID:  5
 cpu6 (AP): APIC ID:  6
 cpu7 (AP): APIC ID:  7
 cpu8 (AP): APIC ID:  8
 cpu9 (AP): APIC ID:  9
 cpu10 (AP): APIC ID: 10
 cpu11 (AP): APIC ID: 11
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
cpu4: <ACPI CPU> on acpi0
cpu5: <ACPI CPU> on acpi0
cpu6: <ACPI CPU> on acpi0
cpu7: <ACPI CPU> on acpi0
cpu8: <ACPI CPU> on acpi0
cpu9: <ACPI CPU> on acpi0
cpu10: <ACPI CPU> on acpi0
cpu11: <ACPI CPU> on acpi0
coretemp0: <CPU On-Die Thermal Sensors> on cpu0
est0: <Enhanced SpeedStep Frequency Control> on cpu0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
coretemp1: <CPU On-Die Thermal Sensors> on cpu1
est1: <Enhanced SpeedStep Frequency Control> on cpu1
p4tcc1: <CPU Frequency Thermal Control> on cpu1
coretemp2: <CPU On-Die Thermal Sensors> on cpu2
est2: <Enhanced SpeedStep Frequency Control> on cpu2
p4tcc2: <CPU Frequency Thermal Control> on cpu2
coretemp3: <CPU On-Die Thermal Sensors> on cpu3
est3: <Enhanced SpeedStep Frequency Control> on cpu3
p4tcc3: <CPU Frequency Thermal Control> on cpu3
coretemp4: <CPU On-Die Thermal Sensors> on cpu4
est4: <Enhanced SpeedStep Frequency Control> on cpu4
p4tcc4: <CPU Frequency Thermal Control> on cpu4
coretemp5: <CPU On-Die Thermal Sensors> on cpu5
est5: <Enhanced SpeedStep Frequency Control> on cpu5
p4tcc5: <CPU Frequency Thermal Control> on cpu5
coretemp6: <CPU On-Die Thermal Sensors> on cpu6
est6: <Enhanced SpeedStep Frequency Control> on cpu6
p4tcc6: <CPU Frequency Thermal Control> on cpu6
coretemp7: <CPU On-Die Thermal Sensors> on cpu7
est7: <Enhanced SpeedStep Frequency Control> on cpu7
p4tcc7: <CPU Frequency Thermal Control> on cpu7
coretemp8: <CPU On-Die Thermal Sensors> on cpu8
est8: <Enhanced SpeedStep Frequency Control> on cpu8
p4tcc8: <CPU Frequency Thermal Control> on cpu8
coretemp9: <CPU On-Die Thermal Sensors> on cpu9
est9: <Enhanced SpeedStep Frequency Control> on cpu9
p4tcc9: <CPU Frequency Thermal Control> on cpu9
coretemp10: <CPU On-Die Thermal Sensors> on cpu10
est10: <Enhanced SpeedStep Frequency Control> on cpu10
p4tcc10: <CPU Frequency Thermal Control> on cpu10
coretemp11: <CPU On-Die Thermal Sensors> on cpu11
est11: <Enhanced SpeedStep Frequency Control> on cpu11
p4tcc11: <CPU Frequency Thermal Control> on cpu11

#>  sysctl dev.cpu
dev.cpu.0.%desc: ACPI CPU
dev.cpu.0.%driver: cpu
dev.cpu.0.%location: handle=\_SB_.P000
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%parent: acpi0
dev.cpu.0.coretemp.delta: 54
dev.cpu.0.coretemp.resolution: 1
dev.cpu.0.coretemp.tjmax: 91.0C
dev.cpu.0.coretemp.throttle_log: 0
dev.cpu.0.temperature: 37.0C
dev.cpu.0.freq: 3200
dev.cpu.0.freq_levels: 3201/130000 3200/130000 3000/119000 2800/109000
2600/99000 2400/89000 2200/80000 2000/71000 1800/62000 1600/54000
1400/46000 1225/40250 1200/39000 1050/34125 900/29250 750/24375
600/19500 450/14625 300/9750 150/4875
dev.cpu.0.cx_supported: C1/1
dev.cpu.0.cx_lowest: C1
dev.cpu.0.cx_usage: 100.00% last 759us
dev.cpu.1.%desc: ACPI CPU
dev.cpu.1.%driver: cpu
dev.cpu.1.%location: handle=\_SB_.P001
dev.cpu.1.%pnpinfo: _HID=none _UID=0
dev.cpu.1.%parent: acpi0
dev.cpu.1.coretemp.delta: 54
dev.cpu.1.coretemp.resolution: 1
dev.cpu.1.coretemp.tjmax: 91.0C
dev.cpu.1.coretemp.throttle_log: 0
dev.cpu.1.temperature: 37.0C
dev.cpu.1.cx_supported: C1/1
dev.cpu.1.cx_lowest: C1
dev.cpu.1.cx_usage: 100.00% last 24782us
dev.cpu.2.%desc: ACPI CPU
dev.cpu.2.%driver: cpu
dev.cpu.2.%location: handle=\_SB_.P002
dev.cpu.2.%pnpinfo: _HID=none _UID=0
dev.cpu.2.%parent: acpi0
dev.cpu.2.coretemp.delta: 53
dev.cpu.2.coretemp.resolution: 1
dev.cpu.2.coretemp.tjmax: 91.0C
dev.cpu.2.coretemp.throttle_log: 0
dev.cpu.2.temperature: 38.0C
dev.cpu.2.cx_supported: C1/1
dev.cpu.2.cx_lowest: C1
dev.cpu.2.cx_usage: 100.00% last 23314us
dev.cpu.3.%desc: ACPI CPU
dev.cpu.3.%driver: cpu
dev.cpu.3.%location: handle=\_SB_.P003
dev.cpu.3.%pnpinfo: _HID=none _UID=0
dev.cpu.3.%parent: acpi0
dev.cpu.3.coretemp.delta: 53
dev.cpu.3.coretemp.resolution: 1
dev.cpu.3.coretemp.tjmax: 91.0C
dev.cpu.3.coretemp.throttle_log: 0
dev.cpu.3.temperature: 38.0C
dev.cpu.3.cx_supported: C1/1
dev.cpu.3.cx_lowest: C1
dev.cpu.3.cx_usage: 100.00% last 8973us
dev.cpu.4.%desc: ACPI CPU
dev.cpu.4.%driver: cpu
dev.cpu.4.%location: handle=\_SB_.P004
dev.cpu.4.%pnpinfo: _HID=none _UID=0
dev.cpu.4.%parent: acpi0
dev.cpu.4.coretemp.delta: 50
dev.cpu.4.coretemp.resolution: 1
dev.cpu.4.coretemp.tjmax: 91.0C
dev.cpu.4.coretemp.throttle_log: 0
dev.cpu.4.temperature: 41.0C
dev.cpu.4.cx_supported: C1/1
dev.cpu.4.cx_lowest: C1
dev.cpu.4.cx_usage: 100.00% last 9446us
dev.cpu.5.%desc: ACPI CPU
dev.cpu.5.%driver: cpu
dev.cpu.5.%location: handle=\_SB_.P005
dev.cpu.5.%pnpinfo: _HID=none _UID=0
dev.cpu.5.%parent: acpi0
dev.cpu.5.coretemp.delta: 50
dev.cpu.5.coretemp.resolution: 1
dev.cpu.5.coretemp.tjmax: 91.0C
dev.cpu.5.coretemp.throttle_log: 0
dev.cpu.5.temperature: 41.0C
dev.cpu.5.cx_supported: C1/1
dev.cpu.5.cx_lowest: C1
dev.cpu.5.cx_usage: 100.00% last 50156us
dev.cpu.6.%desc: ACPI CPU
dev.cpu.6.%driver: cpu
dev.cpu.6.%location: handle=\_SB_.P006
dev.cpu.6.%pnpinfo: _HID=none _UID=0
dev.cpu.6.%parent: acpi0
dev.cpu.6.coretemp.delta: 48
dev.cpu.6.coretemp.resolution: 1
dev.cpu.6.coretemp.tjmax: 91.0C
dev.cpu.6.coretemp.throttle_log: 0
dev.cpu.6.temperature: 43.0C
dev.cpu.6.cx_supported: C1/1
dev.cpu.6.cx_lowest: C1
dev.cpu.6.cx_usage: 100.00% last 19304us
dev.cpu.7.%desc: ACPI CPU
dev.cpu.7.%driver: cpu
dev.cpu.7.%location: handle=\_SB_.P007
dev.cpu.7.%pnpinfo: _HID=none _UID=0
dev.cpu.7.%parent: acpi0
dev.cpu.7.coretemp.delta: 48
dev.cpu.7.coretemp.resolution: 1
dev.cpu.7.coretemp.tjmax: 91.0C
dev.cpu.7.coretemp.throttle_log: 0
dev.cpu.7.temperature: 43.0C
dev.cpu.7.cx_supported: C1/1
dev.cpu.7.cx_lowest: C1
dev.cpu.7.cx_usage: 100.00% last 17630us
dev.cpu.8.%desc: ACPI CPU
dev.cpu.8.%driver: cpu
dev.cpu.8.%location: handle=\_SB_.P008
dev.cpu.8.%pnpinfo: _HID=none _UID=0
dev.cpu.8.%parent: acpi0
dev.cpu.8.coretemp.delta: 56
dev.cpu.8.coretemp.resolution: 1
dev.cpu.8.coretemp.tjmax: 91.0C
dev.cpu.8.coretemp.throttle_log: 0
dev.cpu.8.temperature: 35.0C
dev.cpu.8.cx_supported: C1/1
dev.cpu.8.cx_lowest: C1
dev.cpu.8.cx_usage: 100.00% last 30858us
dev.cpu.9.%desc: ACPI CPU
dev.cpu.9.%driver: cpu
dev.cpu.9.%location: handle=\_SB_.P009
dev.cpu.9.%pnpinfo: _HID=none _UID=0
dev.cpu.9.%parent: acpi0
dev.cpu.9.coretemp.delta: 56
dev.cpu.9.coretemp.resolution: 1
dev.cpu.9.coretemp.tjmax: 91.0C
dev.cpu.9.coretemp.throttle_log: 0
dev.cpu.9.temperature: 35.0C
dev.cpu.9.cx_supported: C1/1
dev.cpu.9.cx_lowest: C1
dev.cpu.9.cx_usage: 100.00% last 14794us
dev.cpu.10.%desc: ACPI CPU
dev.cpu.10.%driver: cpu
dev.cpu.10.%location: handle=\_SB_.P00A
dev.cpu.10.%pnpinfo: _HID=none _UID=0
dev.cpu.10.%parent: acpi0
dev.cpu.10.coretemp.delta: 50
dev.cpu.10.coretemp.resolution: 1
dev.cpu.10.coretemp.tjmax: 91.0C
dev.cpu.10.coretemp.throttle_log: 0
dev.cpu.10.temperature: 41.0C
dev.cpu.10.cx_supported: C1/1
dev.cpu.10.cx_lowest: C1
dev.cpu.10.cx_usage: 100.00% last 12779us
dev.cpu.11.%desc: ACPI CPU
dev.cpu.11.%driver: cpu
dev.cpu.11.%location: handle=\_SB_.P00B
dev.cpu.11.%pnpinfo: _HID=none _UID=0
dev.cpu.11.%parent: acpi0
dev.cpu.11.coretemp.delta: 49
dev.cpu.11.coretemp.resolution: 1
dev.cpu.11.coretemp.tjmax: 91.0C
dev.cpu.11.coretemp.throttle_log: 0
dev.cpu.11.temperature: 42.0C
dev.cpu.11.cx_supported: C1/1
dev.cpu.11.cx_lowest: C1
dev.cpu.11.cx_usage: 100.00% last 1628us

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