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[Qemu-devel] qemu-user-linux: how could I measure performance for aarch6
From: |
Matwey V. Kornilov |
Subject: |
[Qemu-devel] qemu-user-linux: how could I measure performance for aarch64 and arm? |
Date: |
Thu, 10 Jan 2019 22:31:56 +0300 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 |
Hello,
I am running the same application compiled for aarch64 and armv7l on
x86_64 platform using qemu-user-linux tools.
I see dramatic performance difference (30 times) between emulated
architectures: aarch64 runs for ~4 minutes, armv7l runs for ~2 hours.
I do understand that CPU architecture emulation is inherently slow
thing, but my question is about the difference.
How could I debug to understand what is the reason for such a big
difference? I've already tried to run stress-ng compiled for this two
architectures, but it leads to the same performance per second.
I am running qemu 2.11, should I try other version?
- [Qemu-devel] qemu-user-linux: how could I measure performance for aarch64 and arm?,
Matwey V. Kornilov <=