On Mon, 06.10.14 16:34, Zbigniew Jędrzejewski-Szmek (zbys...@in.waw.pl) wrote:
> On Mon, Oct 06, 2014 at 02:57:17PM +0200, Lennart Poettering wrote: > > > systemd does a lot. And an 1,3 MiB binary is a hug binary size for > > > something > > > that started out as managing services and sessions via control > > > cgroups. > > > > Well, it does a lot more these days. > > > > The Linux kernel also started out pretty small too. Nowadays it does a > > lot more, which makes it so unversially applicable. I figure systemd > > goes a similar path. (Though hopefully will never grow as massive, > > complex and monolithic as the kernel...) > This is an interesting question, where this 1.3 MB comes from. > > objdump -t ./systemd|sed -r -n > 's/([0-9a-z]+).*(\.text|\.data\.[a-z.]*|\.rodata\.[a-z.]*)[ \t]*([0-9a-z]+)[ > \t]*(\.hidden[ \t]+|)(.*)/\3 \5 -- \2/p'|sort|tail > > 0000000000000a13 service_deserialize_item -- .text > 0000000000000a6e cgroup_context_apply -- .text > 0000000000000ae2 socket_apply_socket_options -- .text > 0000000000000b00 rtnl_types -- .data.rel.ro.local > 0000000000000b32 exec_context_dump -- .text > 0000000000000d50 bus_exec_vtable -- .data.rel.ro > 0000000000000d62 transaction_add_job_and_dependencies -- .text > 0000000000000e40 bus_unit_vtable -- .data.rel.ro > 00000000000011d7 bus_cgroup_set_property -- .text > 0000000000001410 bus_manager_vtable -- .data.rel.ro > 0000000000001453 exec_child -- .text > 0000000000001470 wordlist.7848 -- .data.rel.ro.local > 0000000000002b90 main -- .text > 000000000000e1c0 wordlist.14097 -- .data.rel.ro > > wordlist.14097 is a generated table for all configuration options in > load-fragment-gperf.c. > > wordlist.7848 is for errno_from_name (5k for this is a bit of a > stretch though). I wonder if any of these tables might have holes in them? i.e. some enums skip a few numbers in the middle, and are thus not really appropriate for the usual DEFINE_STRING_TABLE() stuff we do? > I think this hasn't been mentioned in this thread, but PID1 is > shrinking at least a bit, because a bunch of things which used to be > implemented in PID1 have been outsourced to generators. > ./systemd-sysv-generator, ./systemd-fstab-generator are relatively > recent and significant. And I'd be willing to split out more, but I am not sure currently what could be a good candidate. Lennart -- Lennart Poettering, Red Hat _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel