- BYTE UNIX Benchmarks (Version 5.1.3)
- OS: Debian stretch
- w/o KPTI: GNU/Linux -- 4.9.0-4-amd64 -- #1 SMP Debian 4.9.65-3 (2017-12-03)
- w/ KPTI: GNU/Linux -- 4.9.0-5-amd64 -- #1 SMP Debian 4.9.65-3+deb9u2 (2018-01-04)
- Machine: x86_64: unknown
- Language: en_US.utf8 (charmap="UTF-8", collate="UTF-8")
- CPUs: Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz x 2
- Hyper-Threading, x86-64, MMX, Physical Address Ext, SYSENTER/SYSEXIT, SYSCALL/SYSRET, Intel virtualization
- total 32 vcpus
Tests | w/o KPTI (1) | w/ KPTI (2) | speedup (2)/(1) |
---|---|---|---|
Dhrystone [lps] | 30536361.8 | 30552133.0 | 1.000516473 |
Whetstone [MWIPS] | 3994.6 | 3990.7 | 0.999023682 |
Execl throughput [lps] | 1539.1 | 1430.8 | 0.929634202 |
File copy 1024/2000 [KBps] | 1073040.7 | 728890.8 | 0.679276005 |
File copy 256/500 [KBps] | 295177.5 | 193330.4 | 0.6549632 |
File copy 4096/8000 [KBps] | 2950500.6 | 2253297.4 | 0.763700031 |
Pipe throughput [lps] | 2099825.9 | 1095740.4 | 0.521824405 |
Context switching [lps] | 194631.4 | 176454.2 | 0.906607053 |
Process creation [lps] | 3588.4 | 3262.4 | 0.909151711 |
Shell scripts [lpm] | 4815.4 | 4589.3 | 0.953046476 |
Shell scripts x8 [lpm] | 5327.9 | 4984.9 | 0.935621915 |
Syscall [lps] | 3194393.0 | 761220.4 | 0.238298919 |
Tests | w/o KPTI (1) | w/ KPTI (2) | speedup (2)/(1) |
---|---|---|---|
Dhrystone [lps] | 483682003.5 | 483524547.4 | 0.999674464 |
Whetstone [MWIPS] | 90887.5 | 90862.5 | 0.999724935 |
Execl throughput [lps] | 46411.9 | 45713.2 | 0.984945671 |
File copy 1024/2000 [KBps] | 540774.3 | 502143.4 | 0.928563728 |
File copy 256/500 [KBps] | 142938.3 | 134109.2 | 0.938231391 |
File copy 4096/8000 [KBps] | 1702283.1 | 1606251.6 | 0.943586645 |
Pipe throughput [lps] | 32419611.1 | 21018530.2 | 0.648327648 |
Context switching [lps] | 6779639.9 | 3853988.6 | 0.568465089 |
Process creation [lps] | 116803.4 | 112330.1 | 0.961702313 |
Shell scripts [lpm] | 131116.6 | 126542.3 | 0.965112732 |
Shell scripts x8 [lpm] | 17524.2 | 16874.9 | 0.96294838 |
Syscall [lps] | 4466164.7 | 4309921.3 | 0.965016203 |