From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: X-Spam-Status: No, score=-2.0 required=3.0 tests=ALL_TRUSTED,AWL,BAYES_00 shortcircuit=no autolearn=unavailable version=3.3.2 X-Original-To: mm@80x24.org Received: from localhost (dcvr.yhbt.net [127.0.0.1]) by dcvr.yhbt.net (Postfix) with ESMTP id CF1DF1FD5A; Thu, 4 Sep 2014 04:15:02 +0000 (UTC) From: Eric Wong To: mm@80x24.org Cc: Eric Wong Subject: [PATCH] README: updates about overcommit + release Date: Thu, 4 Sep 2014 04:15:01 +0000 Message-Id: <1409804101-13953-1-git-send-email-e@80x24.org> X-Mailer: git-send-email 2.1.0 List-Id: --- README | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/README b/README index b783514..9be317d 100644 --- a/README +++ b/README @@ -38,7 +38,8 @@ is recommended. We will fix this. Overheads for small allocations is large, we will fix this. -We should work well on systems VM overcommit disabled, will fix +We should avoid using too much space for for systems with overcommit +disabled, will fix. We will support applications which spawn many more threads than CPUs, as we realize it is often easier to spawn extra threads to deal with @@ -51,7 +52,8 @@ probably needs fixing as the related ptmalloc2 (from glibc) behaves horribly sometimes. Memory is not released back to the OS automatically, only via -calls to `malloc_trim'. +calls to `malloc_trim'. Note: releasing memory back to the OS only to +re-acquire it again is expensive. Linux 2.6-and later only for now, FreeBSD support coming. -- EW