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Commit 192efb7a authored by Maninder Singh's avatar Maninder Singh Committed by Linus Torvalds
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bloat-o-meter: provide 3 different arguments for data, function and All 

This patch provides 3 new arguments for bloat-o-meter
 1) -c -> for all (showing function and data differently)
 2) -d -> data
 3) -t -> function

output:

  ./scripts/bloat-o-meter  -c "file1" "file2"
  add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-152 (-152)
  Function                                     old     new   delta
  main                                         412     260    -152
  Total: Before=548, After=396, chg -27.74%
  ##########################################################
  add/remove: 1/0 grow/shrink: 1/0 up/down: 84/0 (84)
  Data                                         old     new   delta
  arr                                            -      64     +64
  backtrace                                     60      80     +20
  Total: Before=109, After=193, chg +77.06%
  ##########################################################
  add/remove: 0/1 grow/shrink: 0/0 up/down: 0/-64 (-64)
  RO Data                                      old     new   delta
  arr                                           64       -     -64
  Total: Before=68, After=4, chg -94.12%

[maninder1.s@samsung.com: v1 -> v2]
  Link: http://lkml.kernel.org/r/1506569402-24787-1-git-send-email-maninder1.s@samsung.com
Link: http://lkml.kernel.org/r/1506336313-27187-1-git-send-email-maninder1.s@samsung.com


Signed-off-by: default avatarVaneet Narang <v.narang@samsung.com>
Signed-off-by: default avatarManinder Singh <maninder1.s@samsung.com>
Cc: Amit Sahrawat <a.sahrawat@samsung.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Michal Marek <mmarek@suse.cz>
Cc: <pankaj.m@samsung.com>
Cc: <a.sahrawat@samsung.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c9b012e5

scripts/bloat-o-meter

+55 −34
Original line number Diff line number Diff line
@@ -12,18 +12,22 @@ from signal import signal, SIGPIPE, SIG_DFL 


signal(SIGPIPE, SIG_DFL)



if len(sys.argv) != 3:

    sys.stderr.write("usage: %s file1 file2\n" % sys.argv[0])

if len(sys.argv) < 3:

    sys.stderr.write("usage: %s [option] file1 file2\n" % sys.argv[0])

    sys.stderr.write("The options are:\n")

    sys.stderr.write("-c	cateogrize output based on symbole type\n")

    sys.stderr.write("-d	Show delta of Data Section\n")

    sys.stderr.write("-t	Show delta of text Section\n")

    sys.exit(-1)



re_NUMBER = re.compile(r'\.[0-9]+')



def getsizes(file):

def getsizes(file, format):

    sym = {}

    with os.popen("nm --size-sort " + file) as f:

        for line in f:

            size, type, name = line.split()

            if type in "tTdDbBrR":

            if type in format:

                # strip generated symbols

                if name.startswith("__mod_"): continue

                if name.startswith("SyS_"): continue
@@ -34,8 +38,9 @@ def getsizes(file): 
                sym[name] = sym.get(name, 0) + int(size, 16)

    return sym



old = getsizes(sys.argv[1])

new = getsizes(sys.argv[2])

def calc(oldfile, newfile, format):

    old = getsizes(oldfile, format)

    new = getsizes(newfile, format)

    grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0

    delta, common = [], {}

    otot, ntot = 0, 0
@@ -66,12 +71,28 @@ for name in common: 


    delta.sort()

    delta.reverse()

    return grow, shrink, add, remove, up, down, delta, old, new, otot, ntot



def print_result(symboltype, symbolformat, argc):

    grow, shrink, add, remove, up, down, delta, old, new, otot, ntot = \

    calc(sys.argv[argc - 1], sys.argv[argc], symbolformat)



    print("add/remove: %s/%s grow/shrink: %s/%s up/down: %s/%s (%s)" % \

          (add, remove, grow, shrink, up, -down, up-down))

print("%-40s %7s %7s %+7s" % ("function", "old", "new", "delta"))

    print("%-40s %7s %7s %+7s" % (symboltype, "old", "new", "delta"))

    for d, n in delta:

        if d: print("%-40s %7s %7s %+7d" % (n, old.get(n,"-"), new.get(n,"-"), d))



    print("Total: Before=%d, After=%d, chg %+.2f%%" % \

        (otot, ntot, (ntot - otot)*100.0/otot))



if sys.argv[1] == "-c":

    print_result("Function", "tT", 3)

    print_result("Data", "dDbB", 3)

    print_result("RO Data", "rR", 3)

elif sys.argv[1] == "-d":

    print_result("Data", "dDbBrR", 3)

elif sys.argv[1] == "-t":

    print_result("Function", "tT", 3)

else:

    print_result("Function", "tTdDbBrR", 2)