| Subject: | Discrepency between Devel::MAT and Devel::Gladiator |
A small test program that captures a .pmat file and prints SV counts using Devel::Gladiator shows some differences in captured object counts between the two.
$ perl -Mblib develmat-vs-gladiator.pl
ARENA COUNTS:
2601 SCALAR
374 GLOB
234 ARRAY
193 CODE
112 HASH
86 REGEXP
31 INVLIST
24 REF
8 IO::File
8 REF-SCALAR
6 REF-ARRAY
5 REF-HASH
3 REF-Regexp
3 Regexp
1 REF-CODE
1 REF-version
1 version
$ pmat vs.pmat count
Perl memory dumpfile from perl 5.26.2
Heap contains 2674 objects
Kind Count (blessed) Bytes (blessed)
ARRAY 212 0 18.5 KiB
CODE 208 0 26.0 KiB
GLOB 374 0 55.5 KiB
HASH 63 1 56.9 KiB 192 bytes
INVLIST 31 0 33.3 KiB
IO 8 8 1.2 KiB 1.2 KiB
PAD 121 0 35.1 KiB
REF 23 0 552 bytes
REGEXP 89 3 19.5 KiB 672 bytes
SCALAR 1495 0 75.1 KiB
STASH 50 0 22.9 KiB
-----
(total) 2674 12 344.5 KiB 2.1 KiB
Some matching values, some non.
Of particular note is how many more SCALARs Devel::Gladiator can see (2601 plus all the REFs) vs Devel::MAT::Dumper (1495+23 = 1518).
--
Paul Evans