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Groups > linux.kernel > #1386689

Re: random(4) changes

From Stephan Mueller <smueller@chronox.de>
Newsgroups linux.kernel
Subject Re: random(4) changes
Date 2016-04-25 19:30 +0200
Message-ID <rrSuD-1f0-29@gated-at.bofh.it> (permalink)
References <rqRKj-Ux-41@gated-at.bofh.it> <rrRfc-hZ-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Am Montag, 25. April 2016, 09:06:03 schrieb Andi Kleen:

Hi Andi,

> Sandy Harris <sandyinchina@gmail.com> writes:
> 
> There is also the third problem of horrible scalability of /dev/random
> output on larger systems, for which patches are getting ignored.
> 
> https://lkml.org/lkml/2016/2/10/716
> 
> Ignoring problems does not make them go away.

I have seen your patches, but I am not fully sure I understand the root cause. 
is the noise source handling the issue or the random number generation the 
issue?

If it is the latter, can you explain where the scalability issue comes in?
> 
> -Andi


Ciao
Stephan

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Thread

random(4) changes Sandy Harris <sandyinchina@gmail.com> - 2016-04-23 00:30 +0200
  Re: random(4) changes Stephan Mueller <smueller@chronox.de> - 2016-04-23 10:00 +0200
  Re: random(4) changes Theodore Ts'o <tytso@mit.edu> - 2016-04-24 04:10 +0200
    Re: random(4) changes Stephan Mueller <smueller@chronox.de> - 2016-04-24 10:10 +0200
      Re: random(4) changes Theodore Ts'o <tytso@mit.edu> - 2016-04-26 05:10 +0200
        Re: random(4) changes Herbert Xu <herbert@gondor.apana.org.au> - 2016-04-26 13:10 +0200
          Re: random(4) changes Andi Kleen <andi@firstfloor.org> - 2016-04-26 22:50 +0200
            Re: random(4) changes Herbert Xu <herbert@gondor.apana.org.au> - 2016-04-27 06:30 +0200
        Re: random(4) changes Stephan Mueller <smueller@chronox.de> - 2016-04-26 20:30 +0200
        Re: random(4) changes Pavel Machek <pavel@ucw.cz> - 2016-04-26 20:50 +0200
          Re: random(4) changes Stephan Mueller <smueller@chronox.de> - 2016-04-26 21:00 +0200
            Re: random(4) changes Pavel Machek <pavel@ucw.cz> - 2016-04-26 21:50 +0200
  Re: random(4) changes Andi Kleen <andi@firstfloor.org> - 2016-04-25 18:10 +0200
    Re: random(4) changes Stephan Mueller <smueller@chronox.de> - 2016-04-25 19:30 +0200
      Re: random(4) changes Andi Kleen <andi@firstfloor.org> - 2016-04-25 19:40 +0200
        Re: random(4) changes Stephan Mueller <smueller@chronox.de> - 2016-04-25 20:00 +0200
          Re: random(4) changes Andi Kleen <andi@firstfloor.org> - 2016-04-25 21:40 +0200
            Re: random(4) changes Stephan Mueller <smueller@chronox.de> - 2016-04-26 14:10 +0200
            Re: random(4) changes Stephan Mueller <smueller@chronox.de> - 2016-04-27 19:50 +0200
    Re: random(4) changes Theodore Ts'o <tytso@mit.edu> - 2016-04-26 03:10 +0200
    Re: random(4) changes Sandy Harris <sandyinchina@gmail.com> - 2016-04-26 14:50 +0200

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