Linux kernel compilation benchmark, measured as wall-clock time.

Tests:
 [1] time tar -jxf /scratch/linux-2.6.37.tar.bz2
 [2] time find linux-2.6.37 -type f -print0 | sort -z | xargs -0 sha1sum >/dev/null  # checksum 35187 files, 392.9 MiB total
 [3] time sh -c 'make defconfig && make -j4'

==============================================================================
NFS in EC2
2011-03-08

 [1] 65m39.250s
 [2] 26m26.267s

 [3] real    74m11.919s
     user    10m59.217s
     sys     1m26.801s


==============================================================================
Native NFS on c09-45
2011-03-08

 [1] 10m18.149s
     11m2.714s          (re-run)
     10m49.994s         (re-run)
 [2] 0m25.813s
 [2] 0m48.673s          (cache flushed on sever first)
 [3] real    4m22.533s
     user    11m2.869s
     sys     1m33.366s

==============================================================================
Local disk on c09-45
2011-03-08

 [1] 30.465s            (including final sync; decompression: 0m15.865s)
 [2] 0m2.453s
 [2] 0m26.669s          (cache flushed before checksums)

==============================================================================
Local disk on c09-45, mount with -o sync
2011-03-08

 [1] 3m5.226s

==============================================================================
BlueSky, US-West, range requests
2011-03-08

 [1] 5m12.465s
 [1] 5m4.895s           (re-run)
 [2] 0m31.590s          (remount, then immediately run)
 [2] 25m48.819s         (data cache flushed, inodes still cached in memory)
 [2] 4m34.294s          (proxy entirely restarted: no data cached)
     5m42.449s          (re-run)
 [3] real    5m49.797s  (data in cache)
     user    11m1.725s
     sys     1m28.970s

 [3] real    7m40.649s  (starting with no cached data)
     user    11m1.213s
     sys     1m29.586s



==============================================================================
BlueSky, US-West, full-segment requests
2011-03-08

 [1] 4m47.497s
 [2] 0m31.271s          (remount, then immediately run)
 [2] 2m6.597s           (data cache flushed, inodes still cached in memory)
 [2] 1m54.408s          (proxy entirely restarted: no data cached)

==============================================================================
BlueSky, US-East, range requests
2011-03-08

 [1] 5m8.481s
 [2] 0m34.726s          (remount, then immediately run)
 [2] 57m26.399s         (data cache flushed, inodes still cached in memory)
 [2] 13m45.051s         (proxy entirely restarted: no data cached)
 [2] 3m50.423s          (as above but with full segment downloads)

 [3] real    10m48.172s (starting with no cached data)
     user    11m0.173s
     sys     1m30.670s

******************************************************************************
2011-03-31

S3-West:
  unpack:
    real    5m5.705s
    user    0m22.405s
    sys     0m7.236s

  cold cache checksum:
    real    26m12.208s
    user    0m3.420s
    sys     0m3.648s

  cold cache compile:
    real    7m10.073s
    user    11m3.801s
    sys     1m30.846s


S3-East:
  unpack:
    real    4m58.972s
    user    0m22.353s
    sys     0m7.288s

  cold cache compile:
    real    8m35.277s
    user    11m2.173s
    sys     1m30.402s


S3-West, full segments:
  cold cache checksum:
    real    1m49.105s
    user    0m3.388s
    sys     0m3.688s

  cold cache compile:
    real    6m45.425s
    user    11m3.581s
    sys     1m30.734s

S3-East, full segments:
  cold cache compile:
    real    8m7.465s
    user    11m3.393s
    sys     1m30.578s

==============================================================================
NetApp
2011-09-17

 [1] real    2m19.113s
     user    0m21.421s
     sys     0m5.004s

 [2] real    3m19.273s
     user    0m3.288s
     sys     0m3.488s

 [3] real    4m31.247s
     user    10m55.269s
     sys     1m30.170s


2011-09-18
 [1] real    2m15.887s
     user    0m21.949s
     sys     0m4.864s

 [2] real    3m13.297s
     user    0m3.352s
     sys     0m3.496s

 [3] real    4m33.410s
     user    11m3.057s
     sys     1m30.874s