Baseline C  : cc  -arch ev7 -fast +CFB ONESTEP 
          C++: cxx -arch ev7 -O2        ONESTEP 
 
 Peak: 
   The following use: -g3 -arch ev7 ONESTEP
       175.vpr 181.mcf 197.parser 253.perlbmk
   
   The following use: -g3 -arch ev6 ONESTEP
       164.gzip 176.gcc 254.gap 255.vortex 256.bzip2 300.twolf
   
   Individual benchmark tuning:
      164.gzip: -fast -O4 -non_shared +CFB 
       175.vpr: -fast -O4 -assume restricted_pointers +CFB 
       176.gcc: -fast -O4 -xtaso_short -all -ldensemalloc -none
                +CFB +IFB 
       181.mcf: -fast -xtaso_short +CFB +IFB +PFB
    186.crafty: same as base
    197.parser: -fast -O4 -xtaso_short -non_shared +CFB
       252.eon: -arch ev7 -O2 -all -ldensemalloc -none 
   253.perlbmk: -fast -non_shared +CFB +IFB 
       254.gap: -fast -O4 -non_shared +CFB +IFB +PFB 
    255.vortex: -fast -non_shared +CFB +IFB
     256.bzip2: -fast -O4 -non_shared +CFB 
     300.twolf: -fast -O4 
                -ldensemalloc -non_shared +CFB +IFB

 Most benchmarks are built using one or more types of 
 profile-driven feedback.  The types used are designated
 by abbreviations in the notes:

 +CFB: Code generation is optimized by the compiler, using 
       feedback from a training run.  These commands are
       done before the first compile (in phase "fdo_pre0"):

            mkdir /tmp/pp
            rm -f /tmp/pp/${baseexe}*

       and these flags are added to the first and second compiles:

            PASS1_CFLAGS = -prof_gen_noopt -prof_dir /tmp/pp
            PASS2_CFLAGS = -prof_use       -prof_dir /tmp/pp
 
      (Peak builds use /tmp/pp above; base builds use /tmp/pb.)

 +IFB: Icache usage is improved by the post-link-time optimizer 
       Spike, using feedback from a training run.  These commands
       are used (in phase "fdo_postN"):  

            mv ${baseexe} oldexe
            spike oldexe -feedback oldexe -o ${baseexe}
 
 +PFB: Prefetches are improved by the post-link-time optimizer 
       Spike, using feedback from a training run.  These
       commands are used (in phase "fdo_post_makeN"):
 
            rm -f *Counts*
            mv ${baseexe} oldexe
            pixie -stats dstride oldexe 1>pixie.out 2>pixie.err
            mv oldexe.pixie ${baseexe}

       A training run is carried out (in phase "fdo_runN"), and 
       then this command (in phase "fdo_postN"):
 
            spike oldexe -fb oldexe -stride_prefetch -o ${baseexe}
 
 When Spike is used for both Icache and Prefetch improvements, 
 only one spike command is actually issued, with the Icache 
 options followed by the Prefetch options.
 
 
 vm:
         vm_bigpg_enabled = 1
         vm_bigpg_thresh=16
         vm_swap_eager = 0
 
 proc:
         max_per_proc_address_space = 0x40000000000
         max_per_proc_data_size = 0x40000000000
         max_per_proc_stack_size = 0x40000000000
         max_proc_per_user = 2048
         max_threads_per_user = 0
         maxusers = 16384
         per_proc_address_space = 0x40000000000
         per_proc_data_size = 0x40000000000
         per_proc_stack_size = 0x40000000000
 
 
 Portability: gcc: -Dalloca=__builtin_alloca; crafty: -DALPHA
 perlbmk: -DSPEC_CPU2000_DUNIX; vortex: -DSPEC_CPU2000_LP64
 gap: -DSYS_HAS_CALLOC_PROTO -DSYS_IS_BSD -DSYS_HAS_IOCTL_PROTO 
      -DSPEC_CPU2000_LP64
  
 Information on UNIX V5.1B Patches can be found at
 http://ftp1.service.digital.com/public/unix/v5.1b/
  
 Processes were bound to CPUs using 'runon'.
 In the GS1280, there are two CPUs per shelf. Each CPU 
 has its own 4GB of memory. Neither of the CPUs can be
 physically removed. For 1 CPU result measurements, 
 one CPU was turned off at boot time using the
 /etc/sysconfigtab setting "cpu_enabled_mask=0". The
 second CPU's 4GB of memory was also physically removed.