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Re: Hacking gnumach to track parental relationship of tasks
From: |
Samuel Thibault |
Subject: |
Re: Hacking gnumach to track parental relationship of tasks |
Date: |
Wed, 11 Sep 2013 22:58:43 +0200 |
User-agent: |
Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30) |
Ludovic Courtès, le Wed 11 Sep 2013 19:59:24 +0200, a écrit :
> In the case we discuss here, the semantics of ‘task_create’ would be
> preserved.
>
> There’s surely a performance impact, that would have to be measured.
> Now, how bad is it compared to, say, calling user-space ethernet drivers
> vs. in-kernel drivers? :-)
Possibly big: if we are to interpose *all* kernel traps, that means
interposing vm_allocate/deallocate and such, and IPC might suffer quite
a bit. Userland network drivers only have impact on network bandwidth,
not on *all* operations.
Samuel
- Re: Hacking gnumach to track parental relationship of tasks, (continued)
- Re: Hacking gnumach to track parental relationship of tasks, Ludovic Courtès, 2013/09/07
- Re: Hacking gnumach to track parental relationship of tasks, Justus Winter, 2013/09/07
- Re: Hacking gnumach to track parental relationship of tasks, Ludovic Courtès, 2013/09/07
- Re: Hacking gnumach to track parental relationship of tasks, Samuel Thibault, 2013/09/09
- Re: Hacking gnumach to track parental relationship of tasks, Ludovic Courtès, 2013/09/09
- Re: Hacking gnumach to track parental relationship of tasks, Samuel Thibault, 2013/09/09
- Re: Hacking gnumach to track parental relationship of tasks, Justus Winter, 2013/09/10
- Re: Hacking gnumach to track parental relationship of tasks, Ludovic Courtès, 2013/09/10
- Re: Hacking gnumach to track parental relationship of tasks, Justus Winter, 2013/09/11
- Re: Hacking gnumach to track parental relationship of tasks, Ludovic Courtès, 2013/09/11
- Re: Hacking gnumach to track parental relationship of tasks,
Samuel Thibault <=
- Re: Hacking gnumach to track parental relationship of tasks, Richard Braun, 2013/09/11
- Re: Hacking gnumach to track parental relationship of tasks, Samuel Thibault, 2013/09/12
- Re: Hacking gnumach to track parental relationship of tasks, Richard Braun, 2013/09/12
- Re: Hacking gnumach to track parental relationship of tasks, Samuel Thibault, 2013/09/12
- Re: Hacking gnumach to track parental relationship of tasks, Richard Braun, 2013/09/12
- Re: Hacking gnumach to track parental relationship of tasks, Samuel Thibault, 2013/09/15
- Re: Hacking gnumach to track parental relationship of tasks, Richard Braun, 2013/09/15
- Re: Hacking gnumach to track parental relationship of tasks, Richard Braun, 2013/09/16
- Re: Hacking gnumach to track parental relationship of tasks, Ludovic Courtès, 2013/09/16
- Re: Hacking gnumach to track parental relationship of tasks, Samuel Thibault, 2013/09/16