summaryrefslogtreecommitdiff
path: root/open_issues/smp.mdwn
blob: 89474d257389c87e9c3280f5fe98100f78ab7de8 (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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
[[!meta copyright="Copyright © 2012, 2013 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]]."]]"""]]

[[!meta title="SMP"]]

[[!tag open_issue_glibc open_issue_gnumach open_issue_hurd]]

See also the [[FAQ entry|faq/smp]].


# IRC, freenode, #hurd, 2012-09-30

    <braunr> i expect smp to be our next gsoc project


## IRC, freenode, #hurd, 2013-01-02

    <braunr> i'd like to mentor someone for adding smp to gnumach


## IRC, freenode, #hurd, 2013-03-14

    <braunr> but i'm afraid we'll have to fight obscur smp-safety issues
    <braunr> for one, drivers are much probably not smp safe and would require
      a big kernel lock
    <braunr> userspace (such as signal delivery in libc) might be affected too
    <braunr> smp isn't that easy


## Richard, 2013-03-20

This task actually looks too big for a GSoC project.


## IRC, freenode, #hurd, 2013-09-30

    <braunr> also, while the problem with hurd is about I/O, it's actually a
      lot more about caching, and even with more data cached in, the true
      problem is contention, in which case having several processors would
      actually slow things down even more