Measure memory size of object array [1018913]

< > BotCompany Repo | #1018913 // Measure memory size of object array

JavaX source code [tags: use-pretranspiled] - run with: x30.jar

!7

sclass LenOnly {
  int len;
}

sclass LenPlusClass {
  int len;
  Class c;
}

p {
  print(+isCompressedOOPS());
  int n = 8*oneMegabyte_int();
  
  for (int l = 0; l <= 8; l++) {
    final int _l = l;
    print("new O[" + l + "] => " + exclusive_measureSizeOfObject(n, -> new O[_l]));
  }
  print("LenOnly=" + exclusive_measureSizeOfObject(n, -> new LenOnly));
  print("LenOnly/unsafe=" + unsafe_sizeOf(new LenOnly));
  print("LenPlusClass=" + exclusive_measureSizeOfObject(n, -> new LenPlusClass));
}

Author comment

Began life as a copy of #1017100

Travelled to 14 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, irmadwmeruwu, ishqpsrjomds, lpdgvwnxivlt, mowyntqkapby, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tvejysmllsmz, vouqrxazstgt

Snippet ID:

#1018913

Snippet name:

Measure memory size of object array

Eternal ID of this version:

#1018913/12

Text MD5:

49e2f2ac99dca1d12b30f5d1cdea7c34

Transpilation MD5:

f62a9c730e56afa38331f8037034f268

Author:

stefan

Category:

javax

Type:

JavaX source code

Public (visible to everyone):

Yes

Archived (hidden from active list):

Created/modified:

2022-04-11 18:51:21

Source code size:

527 bytes / 23 lines

Pitched / IR pitched:

No / No

Views / Downloads:

266 / 467

Version history:

11 change(s)

Referenced in:

[show references]

1	!7
2
3	sclass LenOnly {
4	int len;
5	}
6
7	sclass LenPlusClass {
8	int len;
9	Class c;
10	}
11
12	p {
13	print(+isCompressedOOPS());
14	int n = 8*oneMegabyte_int();
15
16	for (int l = 0; l <= 8; l++) {
17	final int _l = l;
18	print("new O[" + l + "] => " + exclusive_measureSizeOfObject(n, -> new O[_l]));
19	}
20	print("LenOnly=" + exclusive_measureSizeOfObject(n, -> new LenOnly));
21	print("LenOnly/unsafe=" + unsafe_sizeOf(new LenOnly));
22	print("LenPlusClass=" + exclusive_measureSizeOfObject(n, -> new LenPlusClass));
23	}