While the binding is in Java, the underlying routines are still in C and the profile is not much different from Scimark. There are six workloads and these are single-threaded.
Topdown profile shows differences among the tests. The CPU version has one test with high branch misprediction, but this seems tamped down in the Java version.
AMD metrics confirm single threaded nature
elapsed 101.740
on_cpu 0.048 # 0.77 / 16 cores
utime 77.442
stime 1.123
nvcsw 6061 # 91.45%
nivcsw 567 # 8.55%
inblock 0 # 0.00/sec
onblock 12952 # 127.31/sec
cpu-clock 78566629032 # 78.567 seconds
task-clock 78574938696 # 78.575 seconds
page faults 243844 # 3103.330/sec
context switches 6966 # 88.654/sec
cpu migrations 323 # 4.111/sec
major page faults 2 # 0.025/sec
minor page faults 243835 # 3103.216/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 143175014666 # 150.673 branches per 1000 inst
branch misses 369747747 # 0.26% branch miss
conditional 137701502280 # 144.912 conditional branches per 1000 inst
indirect 290449316 # 0.306 indirect branches per 1000 inst
cpu-cycles 357048247322 # 0.22 GHz
instructions 947412030051 # 2.65 IPC
slots 716557155222 #
retiring 294626599862 # 41.1% (41.1%)
-- ucode 22043579 # 0.0%
-- fastpath 294604556283 # 41.1%
frontend 21243854500 # 3.0% ( 3.0%) low
-- latency 12986602212 # 1.8%
-- bandwidth 8257252288 # 1.2%
backend 391269290765 # 54.6% (54.6%)
-- cpu 208947620712 # 29.2%
-- memory 182321670053 # 25.4%
speculation 9364462889 # 1.3% ( 1.3%)
-- branch mispredict 8821180342 # 1.2%
-- pipeline restart 543282547 # 0.1%
smt-contention 52652075 # 0.0% ( 0.0%)
cpu-cycles 355730677372 # 0.22 GHz
instructions 948230791406 # 2.67 IPC
instructions 316779639994 # 59.416 l2 access per 1000 inst
l2 hit from l1 10828793760 # 38.61% l2 miss
l2 miss from l1 2792307207 #
l2 hit from l2 pf 3517655294 #
l3 hit from l2 pf 4354421742 #
l3 miss from l2 pf 120933830 #
instructions 316604203686 # 99.215 float per 1000 inst
float 512 50 # 0.000 AVX-512 per 1000 inst
float 256 648 # 0.000 AVX-256 per 1000 inst
float 128 31412029930 # 99.215 AVX-128 per 1000 inst
float MMX 0 # 0.000 MMX per 1000 inst
float scalar 28 # 0.000 scalar per 1000 inst
Intel metrics
elapsed 402.843
on_cpu 0.054 # 0.86 / 16 cores
utime 344.403
stime 1.434
nvcsw 18472 # 91.84%
nivcsw 1642 # 8.16%
inblock 60192 # 149.42/sec
onblock 4368 # 10.84/sec
cpu-clock 345661731035 # 345.662 seconds
task-clock 345681034487 # 345.681 seconds
page faults 515263 # 1490.574/sec
context switches 21940 # 63.469/sec
cpu migrations 869 # 2.514/sec
major page faults 403 # 1.166/sec
minor page faults 514835 # 1489.335/sec
alignment faults 0 # 0.000/sec
emulation faults 0 # 0.000/sec
branches 455720412495 # 148.354 branches per 1000 inst
branch misses 707526994 # 0.16% branch miss
conditional 455720433455 # 148.354 conditional branches per 1000 inst
indirect 916935931 # 0.298 indirect branches per 1000 inst
slots 1887837681326 #
retiring 733344951086 # 38.8% (38.8%)
-- ucode 44537182261 # 2.4%
-- fastpath 688807768825 # 36.5%
frontend 57289147523 # 3.0% ( 3.0%) low
-- latency 20966437018 # 1.1%
-- bandwidth 36322710505 # 1.9%
backend 1067027486646 # 56.5% (56.5%)
-- cpu 622814566378 # 33.0%
-- memory 444212920268 # 23.5%
speculation 18286255717 # 1.0% ( 1.0%) low
-- branch mispredict 18047855058 # 1.0%
-- pipeline restart 238400659 # 0.0%
smt-contention 0 # 0.0% ( 0.0%)
cpu-cycles 313647299514 # 0.17 GHz
instructions 767158407693 # 2.45 IPC
l2 access 37411980220 # 48.805 l2 access per 1000 inst
l2 miss 22747730612 # 60.80% l2 miss
Process profile gives us some of the JVM processes such as garbage collection
434 processes
8 java 153.24 0.36
4 Finalizer 76.62 0.18
3 Common-Cleaner 76.59 0.17
68 clinfo 20.52 5.98
38 vulkaninfo 1.14 1.52
4 vulkani:disk$0 0.12 0.16
6 php 0.08 0.06
2 llvmpipe-0 0.06 0.08
2 llvmpipe-1 0.06 0.08
2 llvmpipe-10 0.06 0.08
2 llvmpipe-11 0.06 0.08
2 llvmpipe-12 0.06 0.08
2 llvmpipe-13 0.06 0.08
2 llvmpipe-14 0.06 0.08
2 llvmpipe-15 0.06 0.08
2 llvmpipe-2 0.06 0.08
2 llvmpipe-3 0.06 0.08
2 llvmpipe-4 0.06 0.08
2 llvmpipe-5 0.06 0.08
2 llvmpipe-6 0.06 0.08
2 llvmpipe-7 0.06 0.08
2 llvmpipe-8 0.06 0.08
2 llvmpipe-9 0.06 0.08
6 clang 0.05 0.07
3 rocminfo 0.03 0.00
13 C1 CompilerThre 0.00 186.19
4 C2 CompilerThre 0.00 76.62
4 G1 Conc#0 0.00 76.62
4 GC Thread#0 0.00 76.62
4 Reference Handl 0.00 76.62
4 Service Thread 0.00 76.62
4 Signal Dispatch 0.00 76.62
4 Sweeper thread 0.00 76.62
4 G1 Refine#0 0.00 76.61
4 VM Thread 0.00 76.61
3 GC Thread#1 0.00 76.59
3 GC Thread#2 0.00 76.59
3 GC Thread#3 0.00 76.59
3 GC Thread#4 0.00 76.59
3 GC Thread#5 0.00 76.59
3 GC Thread#6 0.00 76.59
3 GC Thread#7 0.00 76.59
3 GC Thread#8 0.00 76.59
3 GC Thread#9 0.00 76.59
1 lspci 0.00 0.03
1 ps 0.00 0.01
83 sh 0.00 0.00
13 gsettings 0.00 0.00
12 gcc 0.00 0.00
8 stat 0.00 0.00
8 systemd-detect- 0.00 0.00
6 llvm-link 0.00 0.00
5 phoronix-test-s 0.00 0.00
4 G1 Main Marker 0.00 0.00
4 G1 Young RemSet 0.00 0.00
4 VM Periodic Tas 0.00 0.00
4 glxinfo 0.00 0.00
3 java-scimark2 0.00 0.00
2 gmain 0.00 0.00
2 lscpu 0.00 0.00
2 setterm 0.00 0.00
2 uname 0.00 0.00
2 which 0.00 0.00
1 cc 0.00 0.00
1 date 0.00 0.00
1 dconf worker 0.00 0.00
1 dirname 0.00 0.00
1 dmesg 0.00 0.00
1 dmidecode 0.00 0.00
1 grep 0.00 0.00
1 ifconfig 0.00 0.00
1 ip 0.00 0.00
1 lsmod 0.00 0.00
1 mktemp 0.00 0.00
1 qdbus 0.00 0.00
1 readlink 0.00 0.00
1 realpath 0.00 0.00
1 sed 0.00 0.00
1 sort 0.00 0.00
1 stty 0.00 0.00
1 systemctl 0.00 0.00
1 template.sh 0.00 0.00
1 wc 0.00 0.00
0 processes running
47 maximum processes
The computation block
1804315) java-scimark2 cpu=10 start=34.81 finish=60.23
1804316) java cpu=4 start=34.81 finish=60.22
1804317) java cpu=5 start=34.81 finish=60.22
1804318) GC Thread#0 cpu=-1 start=34.81 finish=60.22
1804319) G1 Main Marker cpu=0 start=34.82 finish=60.20
1804320) G1 Conc#0 cpu=-1 start=34.82 finish=60.22
1804321) G1 Refine#0 cpu=-1 start=34.82 finish=60.20
1804322) G1 Young RemSet cpu=0 start=34.82 finish=60.20
1804323) VM Thread cpu=-1 start=34.83 finish=60.22
1804335) GC Thread#1 cpu=-1 start=54.74 finish=60.22
1804336) GC Thread#2 cpu=-1 start=54.74 finish=60.22
1804337) GC Thread#3 cpu=-1 start=54.74 finish=60.22
1804338) GC Thread#4 cpu=-1 start=54.74 finish=60.22
1804339) GC Thread#5 cpu=-1 start=54.74 finish=60.22
1804340) GC Thread#6 cpu=-1 start=54.74 finish=60.22
1804341) GC Thread#7 cpu=-1 start=54.74 finish=60.22
1804342) GC Thread#8 cpu=-1 start=54.74 finish=60.22
1804343) GC Thread#9 cpu=-1 start=54.74 finish=60.22
1804324) Reference Handl cpu=-1 start=34.83 finish=60.22
1804325) Finalizer cpu=15 start=34.83 finish=60.22
1804326) Signal Dispatch cpu=-1 start=34.83 finish=60.22
1804327) Service Thread cpu=-1 start=34.83 finish=60.22
1804328) C2 CompilerThre cpu=-1 start=34.83 finish=60.22
1804331) C1 CompilerThre cpu=-1 start=34.84 finish=45.13
1804334) C1 CompilerThre cpu=-1 start=34.86 finish=35.79
1804329) C1 CompilerThre cpu=-1 start=34.83 finish=60.22
1804344) C1 CompilerThre cpu=-1 start=60.20 finish=60.22
1804330) Sweeper thread cpu=-1 start=34.83 finish=60.22
1804332) VM Periodic Tas cpu=0 start=34.84 finish=60.20
1804333) Common-Cleaner cpu=13 start=34.84 finish=60.22