# SPDX-License-Identifier: GPL-2.0-or-later # # PASST - Plug A Simple Socket Transport # for qemu/UNIX domain socket mode # # PASTA - Pack A Subtle Tap Abstraction # for network namespace/tap device mode # # test/memory/passt - Show memory usage of passt in kernel and userspace # # Copyright (c) 2022 Red Hat GmbH # Author: Stefano Brivio gtools sed cat diff nm sort kill tee head tail chroot unshare mount mkdir cp def meminfo_row gout DIFF meminfo_diff /tmp/meminfo.before /tmp/meminfo.after __WHAT__ tl __NAME__ td __DIFF__ 3 0 0 endef def meminfo_reverse_row gout DIFF meminfo_diff /tmp/meminfo.after /tmp/meminfo.before __WHAT__ tl __NAME__ td __DIFF__ 3 0 0 endef def nm_row gout SIZE nm_size /tmp/nm.size __WHAT__ tl __WHAT__ td __SIZE__ 6 0 0 endef def slab_row gout COUNT slab_diff_count /tmp/slabinfo.before /tmp/slabinfo.after __WHAT__ gout SIZE slab_size /tmp/slabinfo.before __WHAT__ gout DIFF slab_diff_size /tmp/slabinfo.before /tmp/slabinfo.after __WHAT__ tl __WHAT__ td __COUNT__ 0 0 0 td __SIZE__ 0 0 0 td __DIFF__ 6 0 0 endef def start_stop_diff guest sed /proc/slabinfo -ne 's/^\([^ ]* *[^ ]* *[^ ]* *[^ ]*\).*/\\\1/p' > /tmp/slabinfo.before guest cat /proc/meminfo > /tmp/meminfo.before guest /bin/passt.avx2 -l /tmp/log -s /tmp/sock -P /tmp/pid __OPTS__ sleep 2 guest cat /proc/meminfo > /tmp/meminfo.after guest sed /proc/slabinfo -ne 's/^\([^ ]* *[^ ]* *[^ ]* *[^ ]*\).*/\\\1/p' > /tmp/slabinfo.after guest kill \$(cat /tmp/pid) guest diff -y --suppress-common-lines /tmp/meminfo.before /tmp/meminfo.after || : guest nm -td -Sr --size-sort -P /bin/passt.avx2 | head -30 | tee /tmp/nm.size guest sed /proc/slabinfo -ne 's/\(.*\).*$/\1/p' | tail -1; (diff -y --suppress-common-lines /tmp/slabinfo.before /tmp/slabinfo.after | sort -grk8) endef def summary info Memory usage summary info th type MiB set WHAT MemFree set NAME used meminfo_reverse_row set WHAT AnonPages set NAME userspace meminfo_row set WHAT Slab set NAME kernel meminfo_row te endef guest mkdir /test guest mount -t tmpfs none /test guest mkdir /test/proc /test/dev /test/tmp guest mount -o bind /proc /test/proc guest mount -o bind /dev /test/dev guest cp -Lr /bin /lib /lib64 /usr /sbin /test/ guest exec switch_root /test /bin/sh guest ulimit -Hn 300000 guest unshare -rUn guest ip link add eth0 type dummy guest ip link set eth0 up guest ip address add 192.0.2.2/24 dev eth0 guest ip address add 2001:db8::2/64 dev eth0 guest ip route add default via 192.0.2.1 guest ip -6 route add default via 2001:db8::1 dev eth0 guest meminfo_size() { grep "^$2:" $1 | tr -s ' ' | cut -f2 -d ' '; } guest meminfo_diff() { echo $(( $(meminfo_size $2 $3) - $(meminfo_size $1 $3) )); } guest nm_size() { grep -m1 "^$2 " $1 | cut -f4 -d ' '; } guest slab_count() { grep "^$2 " $1 | tr -s ' ' | cut -f3 -d ' '; } guest slab_size() { grep "^$2 " $1 | tr -s ' ' | cut -f4 -d ' '; } guest slab_diff_count() { echo $(( $(slab_count $2 $3) - $(slab_count $1 $3) )); } guest slab_diff_size() { echo $(( $(slab_count $2 $3) * $(slab_size $2 $3) - $(slab_count $1 $3) * $(slab_size $1 $3) )); } test Memory usage: all TCP and UDP ports forwarded, IPv4 and IPv6 set OPTS -t all -u all start_stop_diff summary info Userspace memory detail info th symbol MiB set WHAT tcp_buf_discard nm_row set WHAT tcp6_l2_buf nm_row set WHAT tcp4_l2_buf nm_row set WHAT tc nm_row set WHAT pkt_buf nm_row set WHAT udp_splice_map nm_row set WHAT udp6_l2_buf nm_row set WHAT udp4_l2_buf nm_row set WHAT udp_tap_map nm_row set WHAT icmp_id_map nm_row set WHAT udp_splice_buf nm_row set WHAT tc_hash nm_row set WHAT pool_tap6_storage nm_row set WHAT pool_tap4_storage nm_row set WHAT tap6_l4 nm_row set WHAT tap4_l4 nm_row te info Kernel memory detail info th objects count size MiB set WHAT pid slab_row set WHAT dentry slab_row set WHAT Acpi-Parse slab_row set WHAT kmalloc-64 slab_row set WHAT kmalloc-32 slab_row set WHAT lsm_file_cache slab_row set WHAT filp slab_row set WHAT anon_vma_chain slab_row set WHAT ep_head slab_row set WHAT sock_inode_cache slab_row set WHAT signal_cache slab_row set WHAT TCPv6 slab_row set WHAT TCP slab_row set WHAT UDPv6 slab_row te test Memory usage: all TCP ports forwarded, IPv4 set OPTS -t all -4 start_stop_diff summary test Memory usage: all TCP and UDP ports forwarded, IPv4 set OPTS -t all -u all -4 start_stop_diff summary test Memory usage: no ports forwarded set OPTS -t none -u none start_stop_diff summary