summaryrefslogtreecommitdiff
path: root/open_issues/gnumach_constants.mdwn
blob: 16c8cf41e7a561a5c503e13cddafa3318d5cf338 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
[[!meta copyright="Copyright © 2011 Free Software Foundation, Inc."]]

[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
is included in the section entitled [[GNU Free Documentation
License|/fdl]]."]]"""]]

[[!tag open_issue_gnumach]]

At compile-time, GNU Mach is parameterized with several constants.  These might
need some tuning.  Debian has some patches.


# IRC, freenode, #hurd, 2011-06-09

    <braunr> youpi: in ipc/ipc_hash.c, there is code which computes the size of
      the global (space, port)->entry hash table
    <braunr> youpi: you may be interested in tuning this one too
    <youpi> I know
    <braunr> ok
    <youpi> the current value is not so bad
    <youpi> it's big enough for buildds to run fine
    <braunr> 256 if i'm right
    <braunr> well
    <braunr> it won't fail
    <youpi> we're limited by the 4000 object limitation anyway
    <braunr> since it's a chained hash table
    <braunr> but increasing it may help performances a bit
    <braunr> and it certainly can't hurt much