diff options
| author | Jeremy Harris <jgh146exb@wizmail.org> | 2021-03-14 17:45:27 +0000 |
|---|---|---|
| committer | Jeremy Harris <jgh146exb@wizmail.org> | 2021-03-20 00:18:02 +0000 |
| commit | 825a1c76acc35d17b2678c42bc9339559bb8a9bb (patch) | |
| tree | b78fc69da5c0a38949f9c05b090f0d89c20fd797 /doc | |
| parent | 044152b326039eaaefc45e88ef501c4b7e615cef (diff) | |
Memory handling: exponentially-increasing alloc size
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/doc-txt/ChangeLog | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog index c1f6f9b6d..bbd305ae8 100644 --- a/doc/doc-txt/ChangeLog +++ b/doc/doc-txt/ChangeLog @@ -218,6 +218,12 @@ JH/45 Use a (new) separate store pool-pair for DKIM verify working data. This meant a connection with many messages would use continually-growing memory. +JH/46 Use an exponentially-increasing block size when malloc'ing store. Do it + per-pool so as not to waste too much space. Previously a constant size + was used which resulted in O(n^2) behaviour; now we get O(n log n) making + DOS attacks harder. The cost is wasted memory use in the larger blocks. + + Exim version 4.94 ----------------- |