Performances
From ArmadeusWiki
On this page you will find performance results and informations on how to run performance tests on our board.
Boot time
Login prompt is reached in:
- Xs without FPGA loading and network mounting
- Xs with FPGA loading and network mounting
LMBench results
Basic system parameters ------------------------------------------------------------------------------ Host OS Description Mhz tlb cache mem scal pages line par load bytes --------- ------------- ----------------------- ---- ----- ----- ------ ---- armadeus Linux 2.6.18. armv5tejl-linux-gnu 192 64 32 1.0000 1 Processor, Processes - times in microseconds - smaller is better ------------------------------------------------------------------------------ Host OS Mhz null null open slct sig sig fork exec sh call I/O stat clos TCP inst hndl proc proc proc --------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- Basic integer operations - times in nanoseconds - smaller is better ------------------------------------------------------------------- Host OS intgr intgr intgr intgr intgr bit add mul div mod --------- ------------- ------ ------ ------ ------ ------ armadeus Linux 2.6.18. 5.2400 5.2700 29.2 666.4 114.7 Basic float operations - times in nanoseconds - smaller is better ----------------------------------------------------------------- Host OS float float float float add mul div bogo --------- ------------- ------ ------ ------ ------ armadeus Linux 2.6.18. 429.9 353.0 757.1 1992.7 Basic double operations - times in nanoseconds - smaller is better ------------------------------------------------------------------ Host OS double double double double add mul div bogo --------- ------------- ------ ------ ------ ------ armadeus Linux 2.6.18. 477.1 810.1 3013.8 5002.3 Context switching - times in microseconds - smaller is better ------------------------------------------------------------------------- Host OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw --------- ------------- ------ ------ ------ ------ ------ ------- ------- *Local* Communication latencies in microseconds - smaller is better --------------------------------------------------------------------- Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP ctxsw UNIX UDP TCP conn --------- ------------- ----- ----- ---- ----- ----- ----- ----- ---- File & VM system latencies in microseconds - smaller is better ------------------------------------------------------------------------------- Host OS 0K File 10K File Mmap Prot Page 100fd Create Delete Create Delete Latency Fault Fault selct --------- ------------- ------ ------ ------ ------ ------- ----- ------- ----- *Local* Communication bandwidths in MB/s - bigger is better ----------------------------------------------------------------------------- Host OS Pipe AF TCP File Mmap Bcopy Bcopy Mem Mem UNIX reread reread (libc) (hand) read write --------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- ----- armadeus Linux 2.6.18. 21.9 66.4 102. 178.2 Memory latencies in nanoseconds - smaller is better (WARNING - may not be correct, check graphs) ------------------------------------------------------------------------------ Host OS Mhz L1 $ L2 $ Main mem Rand mem Guesses --------- ------------- --- ---- ---- -------- -------- ------- armadeus Linux 2.6.18. 192 10.8 193.9 203.4 517.3 No L2 cache?
LMBench usage
Add lmbench package in buildroot, regenerate your rootfs and copy ROOTFS/usr/bin/lmbench dir to your NFS root export or to your MMC. lmbench need a NFS link or the MMC to work as it needs a lot of storage place. For example:
$ cp -r $HOME/armadeus/buildroot/build_arm_nofpu/root/usr/bin/lmbench /local/export/usr/bin/
On the target do:
# cd /mnt/host/usr/bin/lmbench/scripts
The first time, configure the tests
# OS=armv5tejl-linux-gnu ./config-run
When asked, use in order:
MULTIPLE COPIES [default 1] 1 Job placement selection: 1 MB [default ] 8 SUBSET (ALL|HARWARE|OS|DEVELOPMENT) [default all] HARDWARE then default value (except for result mailing, choose no) except Processor mhz [default 189 MHz, 5.2910 nanosec clock] 192 FSDIR [default /var/tmp] /mnt/host/ Mail results [default yes] no
Then launch the test
# OS=armv5tejl-linux-gnu ./results
Wait some time (1 hour ;-) ) Then parse the results file from your host (it requires Perl)
$ cd NFSROOT/usr/bin/lmbench/scripts/ $ ./getsummary ../results/armv5tejl-linux-gnu/armadeus.*