$ (for i in tcpdump kernel-image xz busybox; do ls -lh {ipk,rpm,deb}/*/${i}[-_][0-9]*;echo; done) | awk '{printf "%5s %s\n", $5,$9}'
333K deb/i586/tcpdump_4.9.2-r0_i386.deb
333K ipk/i586/tcpdump_4.9.2-r0_i586.ipk
338K rpm/i586/tcpdump-4.9.2-r0.i586.rpm
710 deb/qemux86/kernel-image-4.14.48-yocto-standard_4.14.48+git0+94457657b8_65d1c84953-r0_i386.deb
726 ipk/qemux86/kernel-image-4.14.48-yocto-standard_4.14.48+git0+94457657b8_65d1c84953-r0_qemux86.ipk
5.8K rpm/qemux86/kernel-image-4.14.48-yocto-standard-4.14.48+git0+94457657b8_65d1c84953-r0.qemux86.rpm
41K deb/i586/xz_5.2.3-r0_i386.deb
41K ipk/i586/xz_5.2.3-r0_i586.ipk
49K rpm/i586/xz-5.2.3-r0.i586.rpm
285K deb/i586/busybox_1.27.2-r0_i386.deb
285K ipk/i586/busybox_1.27.2-r0_i586.ipk
319K rpm/i586/busybox-1.27.2-r0.i586.rpm
# DEB
$ time dpkg -S /bin/busybox > /dev/null
real 0m0.131s
user 0m0.051s
sys 0m0.070s
# RPM
$ time dnf info /bin/busybox
real 0m4.955s
user 0m3.933s
sys 0m0.235s
# IPK
$ time opkg search /bin/busybox
real 0m0.269s
user 0m0.152s
sys 0m0.103s