Re: [Qemu-devel] [RFC 00/20] Do away with TB retranslation

[Dennis Luehring]

Am 08.09.2015 um 21:00 schrieb Richard Henderson:
> Anyway, I've just fixed the sparc problem and re-pushed the tree to
>
>    git://github.com/rth7680/qemu.git  tcg-search-2
>
> for anyone who wants to do any more testing.

strangly your branch doesn't changed anything for pure SPARC64 in my 
tests - i've always completely removed the qemu folder and cleanly rebuild
(all based on stable shell-scripts)

and now even qemu git master stream results degrated to the worst 
results from my former tests

last result from stream on an 3-4 week old git master - best of all test
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             771.5     0.214717     0.207377     0.244214
Scale:            288.1     0.573320     0.555401     0.660161
Add:              423.5     0.633523     0.566661     1.092067
Triad:            242.9     1.053032     0.987970     1.499563

are parts of your patches already includes in the master?

~/qemu/sparc64-softmmu/qemu-system-sparc64 \
  -m 1G \
  -nographic \
  -serial mon:telnet::3000,server,wait \
  -monitor telnet::4440,server,nowait \
  -netdev user,id=mynet0 \
  -device ne2k_pci,netdev=mynet0 \
  -hda ~/ramdisk/netbsd-615-sparc64.qcow2 \
  -cdrom ~/netbsd/NetBSD-6.1.5-sparc64.iso -boot c \

NetBSD SPARC64 (pure 64Bit)

file /usr/bin/gcc
/usr/bin/gcc: ELF 64-bit MSB executable, SPARC V9, relaxed memory 
ordering, (SYSV), dynamically linked (uses shared libs), for NetBSD 
6.1.5, not stripped

gcc prime.c -o prime.out -lm
file prime.out
prime.out: ELF 64-bit MSB executable, SPARC V9, relaxed memory ordering, 
(SYSV), dynamically linked (uses shared libs), for NetBSD 6.1.5, not 
stripped

gcc stream.c -o stream.out -lm
file stream.out
stream.out: ELF 64-bit MSB executable, SPARC V9, relaxed memory 
ordering, (SYSV), dynamically linked (uses shared libs), for NetBSD 
6.1.5, not stripped

qemu rth7680 tcg-search-2

cd ~/
rm -rf qemu
git clone git://github.com/rth7680/qemu.git
git checkout tcg-search-2
cd qemu
./configure --target-list=sparc64-softmmu
make

prime.out runtimes

11.22 real 11.19 user 0.00 sys
 8.99 real  8.96 user 0.01 sys
 9.03 real  8.99 user 0.01 sys
 8.98 real  8.92 user 0.02 sys

stream benchmark results

#1
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             277.5     0.584221     0.576543     0.599850
Scale:            178.4     0.915691     0.896731     0.973512
Add:              215.3     1.136872     1.114746     1.185749
Triad:            166.5     1.473816     1.441169     1.525007

#2
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             278.1     0.577109     0.575259     0.583267
Scale:            179.3     0.901238     0.892399     0.911371
Add:              215.2     1.124701     1.115341     1.176286
Triad:            167.0     1.448070     1.437424     1.457319

#3
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             276.5     0.580420     0.578757     0.583966
Scale:            179.8     0.898168     0.889899     0.903530
Add:              212.7     1.130851     1.128318     1.136284
Triad:            164.1     1.464667     1.462173     1.467856

#4
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             276.0     0.580713     0.579757     0.583575
Scale:            177.8     0.906521     0.899661     0.910353
Add:              213.9     1.124599     1.122229     1.128944
Triad:            166.0     1.450210     1.446169     1.457350

g++ src/pugixml.cpp -g -Wall -Wextra -Werror -pedantic -std=c++0x -c 
-MMD -MP

compile times
156.49 real 149.09 user 6.97 sys
156.54 real 149.01 user 6.86 sys
155.91 real 148.71 user 6.93 sys
156.51 real 149.12 user 6.83 sys

qemu git master

cd ~/
rm -rf qemu
git clone git://git.qemu-project.org/qemu.git
cd qemu
./configure --target-list=sparc64-softmmu
make

prime.out runtimes

9.32 real 9.26 user 0.03 sys
8.98 real 8.92 user 0.04 sys
8.97 real 8.93 user 0.02 sys
9.00 real 8.97 user 0.02 sys

stream benchmark results

#1
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             276.6     0.584092     0.578538     0.592748
Scale:            179.0     0.908465     0.893868     0.924004
Add:              215.5     1.122398     1.113689     1.128655
Triad:            167.6     1.449198     1.432321     1.457774

#2
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             276.8     0.579905     0.577936     0.585222
Scale:            177.6     0.916502     0.900911     0.924964
Add:              213.0     1.128311     1.126591     1.132405
Triad:            167.7     1.441520     1.431449     1.447586

#3
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             278.4     0.576423     0.574611     0.580779
Scale:            179.4     0.899889     0.892094     0.904380
Add:              215.6     1.117374     1.112954     1.128532
Triad:            165.1     1.457329     1.453899     1.465867

#4
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:             278.1     0.578641     0.575289     0.586838
Scale:            178.7     0.903208     0.895518     0.907769
Add:              210.8     1.144200     1.138318     1.156063
Triad:            165.2     1.459674     1.453116     1.479194

g++ src/pugixml.cpp -g -Wall -Wextra -Werror -pedantic -std=c++0x -c 
-MMD -MP

compile times
156.85 real 148.98 user 7.17 sys
157.05 real 149.99 user 6.78 sys
157.48 real 150.25 user 6.92 sys
156.50 real 149.06 user 6.60 sys