• Bug#1102270: ghostscript: BBOX slow

    From Paul Szabo@21:1/5 to All on Mon Apr 7 02:10:01 2025
    Package: ghostscript
    Version: 10.0.0~dfsg-11+deb12u7
    Severity: normal

    I observe that gs -sDEVICE=bbox can be pathologically slow: on the
    file attached as example it takes about 20 seconds. Using gs to show
    on screen is fine, takes under 0.5 seconds.

    Within my printing setup I had been using gs to count pages in PS files
    with something like

    gs -P- -dSAFER -o - -sDEVICE=bbox file.ps 2>&1 | \
    grep HiResBoundingBox | wc -l

    Recently noticed that for some print jobs, gs took up to 10 minutes.
    (Seems this happens most often for PDF files sent as PS from Macs.)
    This is a recent issue, not sure whether triggered by some update on
    Mac, or of ghostscript. Noticed that ps2ps is also slow on these files,
    not as dramatically as BBOX.

    Thanks, Paul
    --
    Paul Szabo psz@maths.usyd.edu.au www.maths.usyd.edu.au/u/psz
    School of Mathematics and Statistics University of Sydney Australia


    -- System Information:
    Debian Release: 12.10
    APT prefers stable-security
    APT policy: (500, 'stable-security'), (500, 'stable')
    Architecture: amd64 (x86_64)

    Kernel: Linux 6.12+pk12.63 (SMP w/64 CPU threads; PREEMPT)
    Kernel taint flags: TAINT_OOT_MODULE
    Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
    Shell: /bin/sh linked to /usr/bin/dash
    Init: systemd (via /run/systemd/system)

    Versions of packages ghostscript depends on:
    ii libc6 2.36-9+deb12u10
    ii libgs10 10.0.0~dfsg-11+deb12u7

    ghostscript recommends no packages.

    ghostscript suggests no packages.

    -- no debconf information

    --- SoupGate-Win32 v1.05
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