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p0w3n3d • today at 2:22 PM • 2 replies • view on HN

My Podman starts containers in arch x86-64-v3 with rosetta on for 27 seconds which Docker does it in 9s. I wonder what's wrong. I've already upgraded Mac to Tahoe (which has x86-64-v3 support included into rosetta)

Replies

bityard • today at 5:34 PM

There is definitely something wrong with your setup. I can run an amd64 container on my Macbook Pro M3 in well under a second:

    [~]$ podman pull --arch=amd64 debian:13
    Resolved "debian" as an alias (/etc/containers/registries.conf.d/000-shortnames.conf)
    Trying to pull docker.io/library/debian:13...
    Getting image source signatures
    Copying blob sha256:866771c43bf5eb77362eeeb163c0c825e194c2806d0b697028434e3b9c02f59d
    Copying config sha256:a3624ddeb711bef28c29e6de1502fc3ef9df132c220d1db5a121b2a1e2a74256
    Writing manifest to image destination
    a3624ddeb711bef28c29e6de1502fc3ef9df132c220d1db5a121b2a1e2a74256

    [~]$ time podman run --rm -ti debian:13 uname -m
    WARNING: image platform (linux/amd64) does not match the expected platform (linux/arm64)
    x86_64
    podman run --rm -ti debian:13 uname -m  0.03s user 0.02s system 9% cpu 0.456 total
cdrage • today at 3:03 PM

Ahhh, one of the reasons could be that Docker Desktop by default uses 50% of your RAM when they create their VM and the maximum amount of CPUs.

Podman Desktop by default has a much lower RAM (4GB) + CPU usage (50% CPU). That's something that could be improved... I've opened up an issue: https://github.com/podman-desktop/podman-desktop/issues/1634... :)

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