Transactional memory

By: Foo_ (foo.delete@this.nomail.com), September 24, 2010 3:08 am
Room: Moderated Discussions
Linus Torvalds (torvalds@linux-foundation.org) on 9/23/10 wrote:
---------------------------
>Paul A. Clayton (paaronclayton@gmail.com) on 9/23/10 wrote:
>>
>>I suspect in practice is rather difficult to evaluate at
>>this point. As far as I know, the only hardware TM
>>systems have been the Sun-internal (never sold--did anyone
>>outside of Sun even get to play with early prototypes?)
>>Rock and Azul Systems implementation--which has entry-price
>>and non-open development issues.
>
>Heh. And the x86 emulation processors from Transmeta, that
>I worked on for several years.
>
>For JITted code, transactions work fine. Why? Because if
>you overflow the transaction size (or other limits: there
>are always things like physical IO that cannot be done
>speculatively), you just retranslate.

What were you using transactional memory for? Which kind of JITted code could take advantage of it?
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T3 announcedMax2010/09/21 04:42 AM
  T3 announcedsomeone2010/09/21 05:53 AM
    T3 announcedanon2010/09/21 06:05 AM
      T3 announcedlurker2010/09/21 07:11 AM
      T3 announcedJesper Frimann2010/09/21 07:21 AM
      T3 announcedPhil2010/09/22 12:59 AM
        T3 announcedMichael S2010/09/22 06:16 AM
  T3 announcedLinus Torvalds2010/09/21 07:15 AM
    T3 announcedanon2010/09/21 09:31 AM
      Transactional memory Paul A. Clayton2010/09/21 10:52 AM
        Transactional memory Linus Torvalds2010/09/21 12:21 PM
          Transactional memory Paul A. Clayton2010/09/23 07:30 AM
            Transactional memory Linus Torvalds2010/09/23 08:01 AM
              Transactional memory David Kanter2010/09/24 12:05 AM
                Transactional memory Linus Torvalds2010/09/24 07:59 AM
                  Transactional memory David Kanter2010/09/25 09:27 AM
                    'dynamic fallback'?Paul A. Clayton2010/09/25 11:28 AM
                      'dynamic fallback'?Linus Torvalds2010/09/25 01:23 PM
                        'dynamic fallback'?blaine2010/09/25 02:16 PM
                Cliff Click Jr. on Azul's HTMPaul A. Clayton2010/09/24 02:19 PM
              Transactional memory Foo_2010/09/24 03:08 AM
    T3 announcedblaine2010/09/21 11:43 AM
      no news from FujitsuMax2010/09/21 10:37 PM
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