| Title | MPS: VMArena growth is brittle, does not fallback to smaller growth increment |
| Status | closed |
| Priority | essential |
| Assigned user | Richard Kistruck |
| Organization | Ravenbrook |
| Description | MPS: VMArena growth is brittle, does not fallback to smaller growth increment RHSK 2007-12-19 See http://info.ravenbrook.com/mail/2007/12/19/12-17-36/0.txt |
| Analysis | RHSK 2007-12-19 Inspection of vmArenaExtend. |
| How found | unknown |
| Evidence | Customer |
| Observed in | 1.108.0 |
| Created by | Richard Kistruck |
| Created on | 2007-12-19 18:03:49 |
| Last modified by | Richard Kistruck |
| Last modified on | 2007-12-21 17:12:23 |
| History | 2007-12-19 RHSK Created. |
| Change | Effect | Date | User | Description |
|---|---|---|---|---|
| 163668 | closed | 2007-12-21 13:15:06 | Richard Kistruck | MPS br/vmarenagrow: arenavm.c: VMChunkCreate() -- remove deliberately-failing test code. |
| 163667 | closed | 2007-12-21 13:08:37 | Richard Kistruck | MPS br/vmarenagrow: arenavm.c: vmArenaExtend() Tidy up code to choose chunk size, with a consistent, smaller (10%) .vmchunk.overhead estimate. Tidy diag and comments. |
| 163665 | closed | 2007-12-20 18:00:50 | Richard Kistruck | MPS br/vmarenagrow: arenavm.c: vmArenaExtend() will: a) choose a better chunkSize; b) fallback to smaller sizes if request fails. *** WARNING *** VMChunkCreate() has test-code that deliberately fails requests, for testing this functionality. |
| 163664 | open | 2007-12-20 17:23:26 | Richard Kistruck | MPS br/vmarenagrow: amcss.c: mps_arena_create /4 => too-small arena, to test arena growth. Also, make testArenaSIZE a round number (2^20 not 10^3*2^10). |
| 163663 | open | 2007-12-20 17:16:43 | Richard Kistruck | MPS br/vmarenagrow: arena.c: ArenaDescribe() now reports total arena reserved and committed (only the two most important things to know!). Transgression: This entails calling the ArenaReserved function. |