Prima di tutto eseguo MacOSX 10.7.1. Ho installato tutto correttamente, Xcode 4 e tutte le librerie, per lavorare con C lenguage.Il comando gprof non sta creando correttamente out.txt
Ho problemi con il comando gprof in shell. Spiegherò passo passo quello che sto facendo e l'output che sto ricevendo.
Fase 1:
~ roger$ cd Path/to/my/workspace
~ roger$ ls
uscita (Fase 1):
queue.c queue.h testqueue.c
Fase 2:
~ roger$ gcc -c -g -pg queue.c
~ roger$ ls
uscita (Fase 2):
queue.c queue.h queue.o testqueue.c
.210
Fase 3:
~ roger$ gcc -o testqueue -g -pg queue.o testqueue.c
~ roger$ ls
uscita (Fase 3):
queue.c queue.h queue.o testqueue testqueue.c
Fase 4:
~ roger$ ./testqueue
~ roger$ ls
uscita (Punto 4):
enqueue element 16807
head=0,tail=1
enqueue element 282475249
head=0,tail=2
enqueue element 1622650073
head=0,tail=3
enqueue element 984943658
head=0,tail=4
enqueue element 1144108930
head=0,tail=5
enqueue element 470211272
head=0,tail=6
enqueue element 101027544
head=0,tail=7
enqueue element 1457850878
head=0,tail=8
enqueue element 1458777923
head=0,tail=9
enqueue element 2007237709
head=0,tail=10
queue is full
dequeue element 16807
dequeue element 282475249
dequeue element 1622650073
dequeue element 984943658
dequeue element 1144108930
dequeue element 470211272
dequeue element 101027544
dequeue element 1457850878
dequeue element 1458777923
dequeue element 2007237709
queue is empty
gmon.out queue.h testqueue
queue.c queue.o testqueue.c
Fase 5 :
~ roger$ gprof -b testqueue gmon.out > out.txt
~ roger$ nano out.txt
uscita (Punto 5):
GNU nano 2.0.6 File: out.txt
granularity: each sample hit covers 4 byte(s) no time propagated
called/total parents
index %time self descendents called+self name index
called/total children
^L
granularity: each sample hit covers 4 byte(s) no time accumulated
% cumulative self self total
time seconds seconds calls ms/call ms/call name
^L
Index by function name
Infine. Il file di output dovrebbe mostrare qualcosa del tipo:
% cumulative self self total
time seconds seconds calls ms/call ms/call name
33.34 0.02 0.02 7208 0.00 0.00 open
16.67 0.03 0.01 244 0.04 0.12 offtime
16.67 0.04 0.01 8 1.25 1.25 memccpy
16.67 0.05 0.01 7 1.43 1.43 write
16.67 0.06 0.01 mcount
0.00 0.06 0.00 236 0.00 0.00 tzset
0.00 0.06 0.00 192 0.00 0.00 tolower
0.00 0.06 0.00 47 0.00 0.00 strlen
0.00 0.06 0.00 45 0.00 0.00 strchr
0.00 0.06 0.00 1 0.00 50.00 main
0.00 0.06 0.00 1 0.00 0.00 memcpy
0.00 0.06 0.00 1 0.00 10.11 print
0.00 0.06 0.00 1 0.00 0.00 profil
0.00 0.06 0.00 1 0.00 50.00 report
...
E mostra campo vuoto.
Ho cercato qui e non ho trovato nulla di utile. Io google ma la stessa cosa.
Sarei molto grato Se qualcuno potesse aiutarmi per favore.
Si può fare [meglio di gprof] (http://stackoverflow.com/domande/1777556/alternative-to-gprof/1779343 # 1779343). –