diff options
| author | Emilio G. Cota | 2017-04-28 20:59:23 +0200 |
|---|---|---|
| committer | Richard Henderson | 2017-06-05 18:25:42 +0200 |
| commit | e75449a346bf558296966a44277bfd93412c6da6 (patch) | |
| tree | 5b4358631631585aa39b9aba07c4ac56242fdb34 /include/exec | |
| parent | target/aarch64: optimize cross-page direct jumps in softmmu (diff) | |
| download | qemu-e75449a346bf558296966a44277bfd93412c6da6.tar.gz qemu-e75449a346bf558296966a44277bfd93412c6da6.tar.xz qemu-e75449a346bf558296966a44277bfd93412c6da6.zip | |
target/aarch64: optimize indirect branches
Measurements:
[Baseline performance is that before applying this and the previous commit]
- NBench, aarch64-softmmu. Host: Intel i7-4790K @ 4.00GHz
1.7x +-+--------------------------------------------------------------------------------------------------------------+-+
| |
| cross |
1.6x +cross+jr.................................................####...................................................+-+
| #++# |
| # # |
1.5x +-+...................................................*****..#...................................................+-+
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| * * # |
1.4x +-+...................................................*...*..#...................................................+-+
| * * # |
| ##### * * # |
1.3x +-+................................****+++#...........*...*..#...................................................+-+
| *++* # * * # |
| * * # * * # |
1.2x +-+................................*..*...#...........*...*..#...................................................+-+
| * * # * * # |
| #### * * # * * # |
1.1x +-+.......................+++#..#..*..*...#...........*...*..#...................................................+-+
| **** # * * # * * # ****#### |
| * * # * * # * * # ****### +++#### ****### * * # |
1x +-++-++++++-++++****###++-*++*++#++*++*+-+#++****+++++*+++*++#++*++*-+#++*****++#++****###-++*++*-+#++*+-*+++#+-++-+
| *****### * * # * * # * * # *++*### * * # * * # * * # * *++# * * # * * # |
| * *++# * * # * * # * * # * * # * * # * * # * * # * * # * * # * * # |
0.9x +-+---*****###--****###---****###--****####--****###--*****###--****###--*****###--****###---****###--****####---+-+
ASSIGNMENT BITFIELD FOURFP EMULATION HUFFMAN LU DECOMPOSITIONNEURAL NUMERIC SORSTRING SORT hmean
png: http://imgur.com/qO9ubtk
NB. cross here represents the previous commit.
- SPECint06 (test set), aarch64-linux-user. Host: Intel i7-4790K @ 4.00GHz
1.5x +-+--------------------------------------------------------------------------------------------------------------+-+
| ***** |
| *+++* jr |
| * * |
1.4x +-+.....................................................................*...*.....................+++............+-+
| * * | |
| ***** * * | |
| * * * * ***** |
1.3x +-+....................................*...*............................*...*....................*.|.*...........+-+
| +++ * * * * * | * |
| ***** * * * * *+++* |
| * * * * * * * * |
1.2x +-+....................*...*...........*...*............................*...*...........*****....*...*...........+-+
| ***** * * * * * * * * * * +++ |
| * * * * * * * * * * * * ***** |
| * * * * ***** * * * * * * * * * * |
1.1x +-+...*...*............*...*...*...*...*...*............................*...*....+++....*...*....*...*...*...*...+-+
| * * * * * * * * * * ***** * * * * * * |
| * * * * * * * * ***** * * * * * * * * * * |
| * * ***** * * * * * * * * ****** * * * * * * * * * * |
1x +-++-+*+++*-++*+++*++++*+-+*+++*-++*+++*-++*+++*+++*++-*++++*-++*****+++*++-*+++*++-*+++*+-+*++++*+++*++-*+++*+-++-+
| * * * * * * * * * * * * * * *+++* * * * * * * * * * * |
| * * * * * * * * * * * * * * * * * * * * * * * * * * |
| * * * * * * * * * * * * * * * * * * * * * * * * * * |
0.9x +-+---*****---*****----*****---*****---*****---*****---******---*****---*****---*****---*****----*****---*****---+-+
astar bzip2 gcc gobmk h264ref hmmlibquantum mcf omnetpperlbench sjengxalancbmk hmean
png: http://imgur.com/3Dp4vvq
- SPECint06 (train set), aarch64-linux-user. Host: Intel i7-4790K @ 4.00GHz
1.7x +-+--------------------------------------------------------------------------------------------------------------+-+
| |
| jr |
1.6x +-+...............................................................................................+++............+-+
| ***** |
| *+++* |
| * * |
1.5x +-+..............................................................................................*...*...........+-+
| +++ * * |
| ***** * * |
1.4x +-+.....................................................................*+++*....................*...*...........+-+
| * * * * |
| ***** * * * * |
| * * * * ***** * * |
1.3x +-+....................................*...*............................*...*...*...*............*...*...........+-+
| +++ * * * * * * * * |
| ***** * * * * * * ***** * * |
1.2x +-+....................*...*...........*...*............................*...*...*...*...*+++*....*...*...*****...+-+
| * * * * * * * * * * * * *+++* |
| ***** * * ***** * * * * * * * * * * * * |
| * * * * *+++* * * * * * * * * * * * * |
1.1x +-+...*...*............*...*...*...*...*...*............................*...*...*...*...*...*....*...*...*...*...+-+
| * * ***** * * * * * * ***** * * * * * * * * * * |
| * * * * * * * * * * +++ ****** *+++* * * * * * * * * * * |
1x +-+---*****---*****----*****---*****---*****---*****---******---*****---*****---*****---*****----*****---*****---+-+
astar bzip2 gcc gobmk h264ref hmmlibquantum mcf omnetpperlbench sjengxalancbmk hmean
png: http://imgur.com/vRrdc9j
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'include/exec')
0 files changed, 0 insertions, 0 deletions