05-31-2019, 01:40 PM
(This post was last modified: 06-02-2019, 01:26 PM by Dirk.
Edit Reason: subject edited (google / summary)
)
Hi,
I am scratching my head why the performance of a specific hashmode (sha512crypt) is delivering a poor performance:
prompt> ~/hashcat-5.1.0/hashcat -D1,2 -b -m1800
hashcat (v5.1.0) starting in benchmark mode...
[..]
OpenCL Platform #1: Advanced Micro Devices, Inc.
================================================
* Device #1: gfx902-xnack, 12817/15079 MB allocatable, 11MCU
OpenCL Platform #2: Intel(R) Corporation
========================================
* Device #2: AMD Ryzen 5 2400G with Radeon Vega Graphics, 7539/30159 MB allocatable, 8MCU
Benchmark relevant options:
===========================
* --opencl-device-types=1,2
* --optimized-kernel-enable
Hashmode: 1800 - sha512crypt $6$, SHA512 (Unix) (Iterations: 5000)
Speed.#1.........: 5947 H/s (47.22ms) @ Accel:64 Loops:32 Thr:64 Vec:1
Speed.#2.........: 2530 H/s (80.15ms) @ Accel:512 Loops:256 Thr:1 Vec:4
Speed.#*.........: 8478 H/s
Started: Fri May 31 13:06:58 2019
Stopped: Fri May 31 13:07:07 2019
prompt>
As this was something beyond what I expected a googled a bit and stumbled over this: https://hashcat.net/forum/thread-7513.html .
I seems @wakawaka had for for the same hardware a way better performance for this hash [ Speed.Dev.#1.....: 21851 H/s (101.84ms) @ Accel:256 Loops:64 Thr:64 Vec:1] while the other results are more in line with what I have. Comparing to what else I have here and what google returned my I am wondering why this specific performance is so poor and a not even a third from Windows.
Drivers: ROCm for GPU, OpenCL for CPU. Using Kernel 5.0.8 with the builtin kfd driver.
Hint would be much appreciated.
Cheers, Dirk
I am scratching my head why the performance of a specific hashmode (sha512crypt) is delivering a poor performance:
prompt> ~/hashcat-5.1.0/hashcat -D1,2 -b -m1800
hashcat (v5.1.0) starting in benchmark mode...
[..]
OpenCL Platform #1: Advanced Micro Devices, Inc.
================================================
* Device #1: gfx902-xnack, 12817/15079 MB allocatable, 11MCU
OpenCL Platform #2: Intel(R) Corporation
========================================
* Device #2: AMD Ryzen 5 2400G with Radeon Vega Graphics, 7539/30159 MB allocatable, 8MCU
Benchmark relevant options:
===========================
* --opencl-device-types=1,2
* --optimized-kernel-enable
Hashmode: 1800 - sha512crypt $6$, SHA512 (Unix) (Iterations: 5000)
Speed.#1.........: 5947 H/s (47.22ms) @ Accel:64 Loops:32 Thr:64 Vec:1
Speed.#2.........: 2530 H/s (80.15ms) @ Accel:512 Loops:256 Thr:1 Vec:4
Speed.#*.........: 8478 H/s
Started: Fri May 31 13:06:58 2019
Stopped: Fri May 31 13:07:07 2019
prompt>
As this was something beyond what I expected a googled a bit and stumbled over this: https://hashcat.net/forum/thread-7513.html .
I seems @wakawaka had for for the same hardware a way better performance for this hash [ Speed.Dev.#1.....: 21851 H/s (101.84ms) @ Accel:256 Loops:64 Thr:64 Vec:1] while the other results are more in line with what I have. Comparing to what else I have here and what google returned my I am wondering why this specific performance is so poor and a not even a third from Windows.
Drivers: ROCm for GPU, OpenCL for CPU. Using Kernel 5.0.8 with the builtin kfd driver.
Hint would be much appreciated.
Cheers, Dirk