【网络团队网页源码】【表白墙模块源码】【懂车帝源码】popt源码-皮皮网

【网络团队网页源码】【表白墙模块源码】【懂车帝源码】popt源码

来源:python项目源码大全发表时间:2024-12-22 16:06:21

1.å¦ä½ä½¿ç¨oprofileå¯¹è½¯ä»¶åprofiling

popt源码

å¦ä½ä½¿ç¨oprofileå¯¹è½¯ä»¶åprofiling

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ããOprofile æ¯ç¨äº Linux çè¥å¹²ç§è¯æµåæ§è½çæ§å·¥å·ä¸çä¸ç§ãå®å¯ä»¥å·¥ä½å¨ä¸åçä½ç³»ç»æä¸ï¼åæ¬ARM,源码网络团队网页源码 PowerPC, MIPS, IA, IA å AMD Athlonççãå®çå¼éå¾å°ï¼ä»Linux 2.6 çèµ·ï¼å®è¢«åå«è¿äºLinuxåæ ¸ä¸ã

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ããéè¿çå¯CPUçhardware eventsï¼oprofileå¯ä»¥å¨è¿è¡ç¶æä¸å¯¹æ´ä¸ªLinuxç³»ç»è¿è¡profilingãProfilingçå¯¹è±¡å¯ä»¥æ¯Linux kernel (åæ¬modulesåinterrupt handlers), shared librariesæèåºç¨ç¨åºã

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ããä»0.9.8çæ¬å¼å§ï¼oprofileæ¯æPerf_events profiling modeæ¨¡å¼ãåºç¨ç¨åºoperfè¢«ç¨æ¥æ§å¶profilingè¿ç¨ï¼èå¨legacy modeä¸ï¼æ¯éè¿opcontrolèæ¬åoprofiled daemonæ¥å®æçãOperfä¸åè±¡legacy modeé£æ ·éè¦OProfile kernel driverï¼å®ç´æ¥åLinux Kernel Performance Events Subsystemæäº¤éãä½¿ç¨operfï¼å°±å¯ä»¥ç¨æ®éç¨æ·çèº«ä»½æ¥profilingç¨æ·çåºç¨ç¨åºäºï¼å½ç¶å¦æéè¦å¯¹æ´ä¸ªç³»ç»æ¥profilingçæ¶åè¿æ¯éè¦rootæéçã

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ããå¦æç¡¬ä»¶ä¸æ¯æOProfileä½¿ç¨performance countersï¼OProfileå°±åªè½å·¥ä½å¨Timer Modeä¸äºãTimer Modeåªè½å¨legacy profiling modeä¸ä½¿ç¨ï¼å³åªè½éè¿opcontrolèæ¬æ¥æ§å¶ã

ããOprofileçä¼å¿ï¼

ããŸ æ¯è¾ä½çè¿è¡å¼é

ããŸ å¯¹è¢«profilingçå¯¹è±¡å½±åå¾å°

ããŸ å¯ä»¥profilingä¸ææå¡ç¨åº(interrupt handlers)

ããŸ å¯ä»¥profilingåºç¨ç¨åºåshared libraries

ããŸ å¯ä»¥profiling dynamically compiled (JIT) code

ããŸ å¯ä»¥å¯¹æ´ä¸ªç³»ç»åprofiling

ããŸ å¯ä»¥è§å¯CPUåé¨çç»èï¼ä¾å¦cache miss rate

ããŸ å¯ä»¥å¤æºä»£ç åannotation

ããŸ å¯ä»¥æ¯æinstruction-levelçprofiling

ããŸ å¯ä»¥çæcall-graph profiles

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ããä¸è¿OProfileä¹ä¸æ¯ä¸è½çï¼å®ä¹æèªå·±çå±éæ§ï¼

ããŸ åªè½å¨x, ARM, åPowerPCæ¶æä¸çæcall graph profiles

ããŸ ä¸æ¯æ%ç²¾ç¡®çinstruction-level profiling

ããŸ å¯¹dynamically compiled (JIT) code profilingçæ¯æè¿ä¸å®åã

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ããäº. ç¼è¯Oprofile

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ããé¦åæå¥½å¨Linux kerneléé¢éä¸Oprofile driverï¼ä»¥è·å¾å¨é¢çæ¯æã

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ããå ä¸ºç¬èä½¿ç¨çæ¯Xilinx Linux pre-built .7ï¼æä»¥è¿éä¸è½½çæ¯linux-xlnx-xilinx-v.7.tar.gz

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ããexport ARCH=arm

ããexport CROSS_COMPILE=arm-xilinx-linux-gnueabi-

ããmake xilinx_zynq_defconfig

ããmake xconfig æèmake menuconfig

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ããå¨éç½®çé¢ä¸å°ä»¥ä¸ä¸¤é¡¹å¾ä¸ï¼

ããGeneral setup --->

ãã[*] Profiling support

ãã<*> OProfile system profiling

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ããç¶åmake uImageå³å¯çææ°çuImageï¼ç¨æ¥æ¿æ¢Xilinx Linux pre-built .7ä¸çLinux kernel imageãåæ¶æä»¬ä¹éè¦vmlinuxæ¥æ£æ¥profilingçç»æã

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ããéå¯¹popt 1.7ï¼ç¨ä»¥ä¸å½ä»¤å®æç¼è¯ï¼

ãã./configure --prefix=/home/wave/xilinx/oprofileprj/rootfs --host=arm-xilinx-linux-gnueabi --with-kernel-support --disable-nls && make && make install

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ããéå¯¹binutils 2.ï¼ç¨ä»¥ä¸å½ä»¤å®æç¼è¯ï¼

ãã./configure --host=arm-xilinx-linux-gnueabi --prefix=/home/wave/xilinx/oprofileprj/rootfs --enable-install-libbfd --enable-install-libiberty --enable-shared && make && make install

ããä¸è¿--enable-install-libibertyæ²¡æææï¼æä»¥éè¦æå·¥ælibiberty.aålibiberty.hæ·è´å°ç¸åºçä½ç½®ã

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ããéå¯¹oprofile 0.9.9ï¼ç¨ä»¥ä¸å½ä»¤å®æç¼è¯ï¼

ãã./configure --host=arm-xilinx-linux-gnueabi --prefix=/home/wave/xilinx/oprofileprj/rootfs --with-kernel-support --with-binutils=/home/wave/xilinx/oprofileprj/rootfs && make && make install

ããconfig.status: executing libtool commands

ããWarning: QT version 3 was requested but not found. No GUI will be built.

ããWarning: The user account 'oprofile:oprofile' does not exist on the system.

ããTo profile JITed code, this special user account must exist.

ããPlease ask your system administrator to add the following user and group:

ããuser name : 'oprofile'

ããgroup name: 'oprofile'

ããThe 'oprofile' group must be the default group for the 'oprofile' user.

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ããå°ç¼è¯å®æçuImageï¼vmlinuxï¼oprofile binaryï¼éæ°ç¼è¯çæ²¡æ-pgçlibjpeg binaryä»¥åtool chainçlibcæåæ¾å°SDå¡ä¸ï¼åå¤å¨ZCå¼åæ¿ä¸å°è¯profile djpegã

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ããmount /dev/mmcblk0p1 /mnt

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ããmkdir -p /home/root/work

ããcd /home/root/work

ããtar zxvf /mnt/jpeg-bin-nopg.tar.gz

ããcd jpeg-bin/bin

ããcp /mnt/park-x.jpg .

ããexport LD_LIBRARY_PATH=/home/root/work/jpeg-bin/lib

ãã

ããcd /home/root/work

ããtar zxvf /mnt/rootfs.tar.gz

ããcd rootfs

ããchown root:root -R

ããcp -R bin/* /usr/bin

ããcp -R lib/* /lib

ããcp /bin/which /usr/bin

ããcp /bin/dirname /usr/bin

ããmkdir -p /home/wave/xilinx/oprofileprj/rootfs/share

ããcp -R ./rootfs/* /home/wave/xilinx/oprofileprj/rootfs

ãã

ããcd /home/root/work

ããtar zxvf /mnt/libc.tar.gz

ããcp ./lib/libstdc*.* /lib

ãã

ããmkdir -p /home/wave/xilinx/libjpeg

ããcd /home/wave/xilinx/libjpeg

ããtar zxvf /mnt/jpeg-9.tar.gz

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ããcp /mnt/vmlinux /home/root/work

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ããcd /home/root/work/jpeg-bin/bin

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ããopcontrol --init

ããopcontrol --vmlinux=/home/root/work/vmlinux

ããopcontrol --setup --event=CPU_CYCLES:::0:1 --session-dir=/home/root/

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ããoperf --vmlinux /home/root/work/vmlinux ./djpeg -bmp park-x.jpg > result.bmp

ããopreport -l ./djpeg

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ããroot@zynq:~/work/jpeg-bin/bin# opreport -l ./djpeg

ããUsing /home/root/work/jpeg-bin/bin/oprofile_data/samples/ for samples directory.

ããCPU: ARM Cortex-A9, speed MHz (estimated)

ããCounted CPU_CYCLES events (CPU cycle) with a unit mask of 0x (No unit mask) count

ããsamples % image name symbol name

ãã . libc-2..so /lib/libc-2..so

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