40fc9e6e7b
These show a summary of memory usage in kernel and userspace with different port forwarding configurations, details of userspace usage using 'nm' (passt only uses statically allocated memory), and details of kernel memory from slab reporting facilities. This adds a new test image, mbuto.mem.img, with harcoded IPv4 and IPv6 addresses and routes, and just the tools we need to start and stop passt, to report from /proc/slabinfo, /proc/meminfo, and to print and parse symbol sizes using nm(1). passt can't pivot_root() for sandboxing purposes on ramfs, so we need to create another filesystem and chroot into it, first. We don't want to use pane context functions, as we're checking memory usage for sockets: resort to screen-scraping. Configure a dummy interface to provide passt with an appearance of working IPv4 and IPv6 connectivity, contributed by David. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
44 lines
1 KiB
Bash
Executable file
44 lines
1 KiB
Bash
Executable file
#!/bin/sh
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#
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# SPDX-License-Identifier: AGPL-3.0-or-later
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#
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# PASST - Plug A Simple Socket Transport
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# for qemu/UNIX domain socket mode
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#
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# test/passt.mem.mbuto - mbuto (https://mbuto.sh) profile for memory usage tests
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#
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# Copyright (c) 2022 Red Hat GmbH
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# Author: Stefano Brivio <sbrivio@redhat.com>
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PROGS="${PROGS:-ash,dash,bash chmod ip mount insmod mkdir ln cat chmod modprobe
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grep mknod sed chown sleep bc ls ps mount unshare chroot cp kill diff
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head tail sort tr tee cut nm which}"
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KMODS="${KMODS:- dummy}"
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NODES="${NODES:-console kmsg null ptmx random urandom zero}"
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LINKS="${LINKS:-
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ash,dash,bash /init
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ash,dash,bash /bin/sh}"
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DIRS="${DIRS} /tmp /sbin"
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COPIES="${COPIES} ../passt.avx2,/bin/passt.avx2"
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FIXUP="${FIXUP}"'
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ln -s /bin /usr/bin
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chmod 777 /tmp
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ip link add eth0 type dummy
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ip link set eth0 up
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ip address add 192.0.2.2/24 dev eth0
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ip address add 2001:db8::2/64 dev eth0
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ip route add default via 192.0.2.1
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ip -6 route add default via 2001:db8::1 dev eth0
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sleep 2
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sh +m
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'
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OUTPUT="KERNEL=__KERNEL__
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INITRD=__INITRD__
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"
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