Re: 2.5.69-mm8

["Martin J. Bligh" <mbligh@aracnet.com>]

> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.5/2.5.69/2.5.69-mm8/
> 
> . One anticipatory scheduler patch, but it's a big one.  I have not stress
>   tested it a lot.  If it explodes please report it and then boot with
>   elevator=deadline.
> 
> . The slab magazine layer code is in its hopefully-final state.
> 
> . Some VFS locking scalability work - stress testing of this would be
>   useful.

Well, unsure about the problems I reported earlier - seems to be related
to modem disconnects during SDET runs ... the hung session seems to lock
up the system somehow. But that could have been around for ages - I'll
try to be more scientific about reproducing it at some point.

SDET results are about the same, kernel compile is down a bit on systime
(16-way NUMA-Q)

Kernbench: (make -j vmlinux, maximal tasks)
                              Elapsed      System        User         CPU
               2.5.69-mm7       46.58      117.00      578.47     1492.00
               2.5.69-mm8       46.09      115.11      570.74     1487.25

      1004     2.0% default_idle
       272     8.3% __copy_from_user_ll
       129     1.7% __d_lookup
        79     7.5% link_path_walk
...
       -50    -1.3% find_get_page
       -55    -1.5% zap_pte_range
       -66    -6.5% file_move
       -74    -1.2% page_add_rmap
       -80    -0.6% do_anonymous_page
      -110    -6.9% schedule
      -139    -7.0% atomic_dec_and_lock
      -698    -0.4% total
     -1139    -4.6% page_remove_rmap

Not sure quite what that's all about, but there it is ;-)

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