costin commented on pull request #453:
URL: https://github.com/apache/lucene/pull/453#issuecomment-972999769
Adding a few more info to this ticket regarding the underlying assembly.
The p64lb method is the shortest, followed by p64 and p64ll.
```
============================= C1-compiled nmethod
==============================
----------------------------------- Assembly
-----------------------------------
Compiled method (c1) 194 774 3
org.apache.lucene.util.packed.Packed64::set (145 bytes)
total in heap [0x000001de36e94990,0x000001de36e94f20] = 1424
relocation [0x000001de36e94ae8,0x000001de36e94b30] = 72
main code [0x000001de36e94b40,0x000001de36e94dc0] = 640
stub code [0x000001de36e94dc0,0x000001de36e94df8] = 56
oops [0x000001de36e94df8,0x000001de36e94e00] = 8
metadata [0x000001de36e94e00,0x000001de36e94e08] = 8
scopes data [0x000001de36e94e08,0x000001de36e94e50] = 72
scopes pcs [0x000001de36e94e50,0x000001de36e94ef0] = 160
dependencies [0x000001de36e94ef0,0x000001de36e94ef8] = 8
nul chk table [0x000001de36e94ef8,0x000001de36e94f20] = 40
----------------------------------- Assembly
-----------------------------------
Compiled method (c1) 173 799 3
org.apache.lucene.util.packed.Packed64VHLongAndByte::set (144 bytes)
total in heap [0x000001c7d511be10,0x000001c7d511d720] = 6416
relocation [0x000001c7d511bf68,0x000001c7d511c0c8] = 352
main code [0x000001c7d511c0e0,0x000001c7d511d0e0] = 4096
stub code [0x000001c7d511d0e0,0x000001c7d511d158] = 120
oops [0x000001c7d511d158,0x000001c7d511d190] = 56
metadata [0x000001c7d511d190,0x000001c7d511d1e8] = 88
scopes data [0x000001c7d511d1e8,0x000001c7d511d500] = 792
scopes pcs [0x000001c7d511d500,0x000001c7d511d6e0] = 480
dependencies [0x000001c7d511d6e0,0x000001c7d511d6e8] = 8
nul chk table [0x000001c7d511d6e8,0x000001c7d511d720] = 56
----------------------------------- Assembly
-----------------------------------
Compiled method (c1) 177 797 3
org.apache.lucene.util.packed.Packed64VHLongLong::set (204 bytes)
total in heap [0x0000018a00893b90,0x0000018a00897390] = 14336
relocation [0x0000018a00893ce8,0x0000018a00894060] = 888
main code [0x0000018a00894060,0x0000018a008965a0] = 9536
stub code [0x0000018a008965a0,0x0000018a00896698] = 248
oops [0x0000018a00896698,0x0000018a008966d0] = 56
metadata [0x0000018a008966d0,0x0000018a00896728] = 88
scopes data [0x0000018a00896728,0x0000018a00896e70] = 1864
scopes pcs [0x0000018a00896e70,0x0000018a00897320] = 1200
dependencies [0x0000018a00897320,0x0000018a00897328] = 8
nul chk table [0x0000018a00897328,0x0000018a00897390] = 104
```
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