cpu% 6l -p -o 6.sort sort.6
cpu% 6.sort /lib/ucd/UnicodeData.txt > /dev/null
cpu% prof 6.sort prof.14373784
  %     Time     Calls  Name
20.4    0.011    69849	poolallocl
13.0    0.007    70432	trim
 9.3    0.005    34925	newline
 5.6    0.003    34924	realloc
 5.6    0.003    34925	malloc
 3.7    0.002    34924	buildkey
 3.7    0.002    70432	blocksetdsize
 3.7    0.002    69849	plock
 3.7    0.002    69849	punlock
 3.7    0.002    72731	pooladd
 3.7    0.002     2052	rsort4
 3.7    0.002    72273	pooldel
 1.9    0.001    34924	Bwrite
 1.9    0.001    34984	memchr
 1.9    0.001    34925	Brdline
 1.9    0.001    34924	poolrealloc
 1.9    0.001    34924	dokey_
 1.9    0.001        1	main
 1.9    0.001        1	printout
 1.9    0.001    34924	lineout
 1.9    0.001    34925	emalloc
 1.9    0.001    34924	poolreallocl
 1.9    0.001    34925	poolalloc
 0.0    0.000    69849	B2D
 0.0    0.000        1	doargs
 0.0    0.000       12	memcmp
 0.0    0.000        1	sort4
 0.0    0.000    34925	memset
 0.0    0.000      398	bsort4
 0.0    0.000        1	done
 0.0    0.000    34924	erealloc
 0.0    0.000        1	dofile
 0.0    0.000   104891	memmove
 0.0    0.000     1212	blockmerge
 0.0    0.000     3591	arenasetsize
 0.0    0.000     1796	poolnewarena
 0.0    0.000     1749	getdsize
 0.0    0.000     1795	blockgrow
 0.0    0.000     1795	arenamerge
 0.0    0.000    17999	blockcheck
 0.0    0.000   144833	blocksetsize
 0.0    0.000     1796	bsize2asize
 0.0    0.000   215892	treesplay
 0.0    0.000   211879	dsize2bsize
 0.0    0.000    71645	treelookupgt
 0.0    0.000    69849	setmalloctag
 0.0    0.000    69849	setrealloctag
 0.0    0.000    69850	lock
 0.0    0.000    69850	unlock
 0.0    0.000        1	onexit
 0.0    0.000        1	atexit
 0.0    0.000     1796	sbrk
 0.0    0.000       60	read
 0.0    0.000        2	getpid
 0.0    0.000       59	write
 0.0    0.000       60	bioread
 0.0    0.000        3	deinstall
 0.0    0.000    34925	Blinelen
 0.0    0.000        1	batexit
 0.0    0.000        1	install
 0.0    0.000       59	biowrite
 0.0    0.000        2	Bterm
 0.0    0.000        2	Binit
 0.0    0.000        2	Binits
 0.0    0.000     1796	sbrkalloc
 0.0    0.000     1795	sbrkmerge
 0.0    0.000        2	Bflush
 0.0    0.000        1	strcmp