简介
限于篇幅限制，很多教程和论文只展示部分结果。我们这里展示非常细节的结果，包括输出的许多命令行结果。
运行命令行 的shell窗口
./build/X86/gem5.opt -d m5out/onlyoneCPUkvmCheckPointDifferRCS20231218restore \
configs/deprecated/example/fs.py --script=configs/yz2023Nov/small_n2/yzfs_canneal.script \
--kernel=/home/yz/.cache/gem5/x86-linux-kernel-4.19.83 \
--disk=/home/yz/.cache/gem5/x86-parsec --checkpoint-dir=m5out/onlyoneCPUkvmCheckPointDifferRCS20231218 -r 1 \
--restore-with-cpu=X86KvmCPU --cpu-type=TimingSimpleCPU --num-cpus=1 \
--script=configs/yz2023Nov/yzfs_parsec.script
运行m5term 的shell窗口
#base) [ 11:31AM ] [ yz@yz-office:~/myprojects/2024GEM5/parsec-tests/yzmodifiedgem5 ]
./util/term/m5term 3456
结果： 运行命令行 的shell窗口
gem5 Simulator System. https://www.gem5.org
gem5 is copyrighted software; use the --copyright option for details.
gem5 version 23.0.1.0
gem5 compiled Oct 22 2023 10:25:41
gem5 started Dec 18 2023 11:31:54
gem5 executing on yz-office, pid 39538
command line: ./build/X86/gem5.opt -d m5out/onlyoneCPUkvmCheckPointDifferRCS20231218restore configs/deprecated/example/fs.py --script=configs/yz2023Nov/small_n2/yzfs_canneal.script --kernel=/home/yz/.cache/gem5/x86-linux-kernel-4.19.83 --disk=/home/yz/.cache/gem5/x86-parsec --checkpoint-dir=m5out/onlyoneCPUkvmCheckPointDifferRCS20231218 -r 1 --restore-with-cpu=X86KvmCPU --cpu-type=TimingSimpleCPU --num-cpus=1 --script=configs/yz2023Nov/yzfs_parsec.script
warn: The `get_runtime_isa` function is deprecated. Please migrate away from using this function.
warn: The fs.py script is deprecated. It will be removed in future releases of gem5.
warn: The `get_runtime_isa` function is deprecated. Please migrate away from using this function.
warn: The `get_runtime_isa` function is deprecated. Please migrate away from using this function.
yzzz print we are using root = Root(full_system=True, system=test_sys)
Global frequency set at 1000000000000 ticks per second
warn: system.workload.acpi_description_table_pointer.rsdt adopting orphan SimObject param 'entries'
warn: No dot file generated. Please install pydot to generate the dot file and pdf.
src/mem/dram_interface.cc:690: warn: DRAM device capacity (8192 Mbytes) does not match the address range assigned (512 Mbytes)
src/sim/kernel_workload.cc:46: info: kernel located at: /home/yz/.cache/gem5/x86-linux-kernel-4.19.83
src/base/statistics.hh:279: warn: One of the stats is a legacy stat. Legacy stat is a stat that does not belong to any statistics::Group. Legacy stat is deprecated.
0: system.pc.south_bridge.cmos.rtc: Real-time clock set to Sun Jan 1 00:00:00 2012
system.pc.com_1.device: Listening for connections on port 3456
system.remote_gdb: Listening for connections on port 7000
src/mem/coherent_xbar.cc:140: warn: CoherentXBar system.membus has no snooping ports attached!
src/dev/intel_8254_timer.cc:128: warn: Reading current count from inactive timer.
Switch at curTick count:10000
src/cpu/kvm/base.cc:169: info: KVM: Coalesced MMIO disabled by config.
src/arch/x86/cpuid.cc:180: warn: x86 cpuid family 0x0000: unimplemented function 2
src/arch/x86/cpuid.cc:180: warn: x86 cpuid family 0x0000: unimplemented function 3
src/arch/x86/cpuid.cc:180: warn: x86 cpuid family 0x0000: unimplemented function 4
src/arch/x86/cpuid.cc:180: warn: x86 cpuid family 0x0000: unimplemented function 5
src/arch/x86/cpuid.cc:180: warn: x86 cpuid family 0x0000: unimplemented function 6
src/sim/simulate.cc:194: info: Entering event queue @ 11768729380500. Starting simulation...
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x3a) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0xd90) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x48) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x309) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x30a) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x30b) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x38d) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x38e) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x38f) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x390) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0xc1) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0xc2) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0xc3) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0xc4) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x186) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x187) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x188) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x189) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x12) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x11) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4b564d01) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4b564d00) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000000) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000001) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000020) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000021) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000022) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000023) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000100) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000101) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000102) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000103) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000104) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000105) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000003) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000002) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000010) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000080) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x400000b0) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000073) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000106) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000107) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x40000108) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x400000ff) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x400000f1) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x400000f2) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x400000f3) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x400000f4) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x400000f5) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4b564d02) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4b564d03) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4b564d04) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4b564d06) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4b564d07) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x3b) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x6e0) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x10a) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x345) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x1a0) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4d0) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x9e) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x34) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0xce) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x140) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x1fc) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x8b) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x480) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x48d) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x48e) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x48f) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x490) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x485) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x486) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x488) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x48a) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x48b) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x48c) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x491) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0xc0010015) unsupported by gem5. Skipping.
src/arch/x86/kvm/x86_cpu.cc:1562: warn: kvm-x86: MSR (0x4b564d05) unsupported by gem5. Skipping.
Switched CPUS @ tick 11768729390500
switching cpus
src/sim/simulate.cc:194: info: Entering event queue @ 11768729390500. Starting simulation...
src/sim/power_state.cc:105: warn: PowerState: Already in the requested power state, request ignored
**** REAL SIMULATION ****
src/sim/simulate.cc:194: info: Entering event queue @ 11769812739000. Starting simulation...
src/dev/x86/pc.cc:117: warn: Don't know what interrupt to clear for console.
build/X86/arch/x86/generated/exec-ns.cc.inc:27: warn: instruction 'verw_Mw_or_Rv' unimplemented
build/X86/arch/x86/generated/exec-ns.cc.inc:27: warn: instruction 'verw_Mw_or_Rv' unimplemented
src/arch/generic/debugfaults.hh:145: warn: MOVNTDQ: Ignoring non-temporal hint, modeling as cacheable!
build/X86/arch/x86/generated/exec-ns.cc.inc:27: warn: instruction 'fwait' unimplemented
build/X86/arch/x86/generated/exec-ns.cc.inc:27: warn: instruction 'verw_Mw_or_Rv' unimplemented
11825043705000: system.pc.com_1.device: attach terminal 0
Exiting @ tick 143338763627000 because m5_exit instruction encountered
结果： 运行m5term的窗口
(base) [ 11:31AM ] [ yz@yz-office:~/myprojects/2024GEM5/parsec-tests/yzmodifiedgem5 ]
$ ./util/term/m5term 3456
==== m5 terminal: Terminal 0 ====
o it.
The programs included with the Ubuntu system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Ubuntu comes with ABSOLUTELY NO WARRANTY, to the extent permitted by
applicable law.
yzzzz42Checkpointing simulation…
yzzzz44CheckpointingDone
yzzzzzz47oading old script…
#!/bin/sh
This is YZ’s modifed version of hack_back_ckpt.rcs originaly by Joel Hestness, hestness@cs.utexas.edu.
#I modified it to be able to run with new different script after restoring from a checkpoint.
#The key idea is to “m5read file” twice and “bash” rather than “exec” the script
Demo econd new script: cd /home/gem5/parsec-benchmark; source env.sh; parsecmgmt -a run -p blackscholes -c gcc-hooks -i simsmall -n 2; sleep 5; m5 exit;
You should observe via m5term 3456: First: old script, showing the content of this scipt. Second: new script, show the contents of cd /home/gem5/parsec-benchmark; source env.sh; parsecmgmt -a run -p blackscholes -c gcc-hooks -i simsmall -n 2; sleep 5; m5 exit;
#author: Yizhi Chen: yizhic@kth.se 2023-Dec-18th
Test if the RUNSCRIPT_VAR environment variable is already set
if [ “${RUNSCRIPT_VAR+set}” != set ]
then
# Signal our future self that it’s safe to continue
export RUNSCRIPT_VAR=1
else
# We’ve already executed once, so we should exit
echo “yzzzWe’ve already executed once, so we should exit”
sleep 2
/sbin/m5 exit
fi
Checkpoint the first execution
echo “yzzzz42Checkpointing simulation…”
/sbin/m5 checkpoint
echo “yzzzz44CheckpointingDone”
Test if we previously okayed ourselves to run this script
if [ “$RUNSCRIPT_VAR” -eq 1 ]
then
# Signal our future self not to recurse infinitely
export RUNSCRIPT_VAR=2
# Read the script for the checkpoint restored execution
echo "yzzzzzz47oading old script..."
/sbin/m5 readfile > /tmp/runscript
cat /tmp/runscript
echo "yzzzzzz54oading second new script..."
/sbin/m5 readfile > /tmp/runscript
cat /tmp/runscript
echo "yzzzzz59runing second new script..."
chmod 755 /tmp/runscript
# Execute the new runscript
if [ -s /tmp/runscript ]
then
echo "yzzzzzz54execute newscrpt..."
#exec /tmp/runscript
bash /tmp/runscript
else
echo "yzzzzz56Script not specified. Dropping into shell..."
/bin/bash
fi
fi
sleep 1;
echo “yzzzzzz62Fell through script. Exiting…”
sleep 3;
/sbin/m5 exit
yzzzzzz54oading second new script…
cd /home/gem5/parsec-benchmark; source env.sh; echo " YZZZ source done "; parsecmgmt -a run -p blackscholes -c gcc-hooks -i simsmall -n 1; sleep 5; m5 exit;
yzzzzz59runing second new script…
yzzzzzz54execute newscrpt…
YZZZ source done
[PARSEC] Benchmarks to run: parsec.blackscholes
[PARSEC] [========== Running benchmark parsec.blackscholes [1] ==========]
[PARSEC] Setting up run directory.
[PARSEC] Unpacking benchmark input ‘simsmall’.
in_4K.txt
[PARSEC] Running ‘time /home/gem5/parsec-benchmark/pkgs/apps/blackscholes/inst/amd64-linux.gcc-hooks/bin/blackscholes 1 in_4K.txt prices.txt’:
[PARSEC] [---------- Beginning of output ----------]
PARSEC Benchmark Suite Version 3.0-beta-20150206
[HOOKS] PARSEC Hooks Version 1.2
Num of Options: 4096
Num of Runs: 100
Size of data: 163840
[HOOKS] Entering ROI
[HOOKS] Leaving ROI
[HOOKS] Total time spent in ROI: 16.646s
[HOOKS] Terminating
real 0m22.939s
user 0m22.105s
sys 0m0.326s
[PARSEC] [---------- End of output ----------]
[PARSEC]
[PARSEC] BIBLIOGRAPHY
[PARSEC]
[PARSEC] [1] Bienia. Benchmarking Modern Multiprocessors. Ph.D. Thesis, 2011.
[PARSEC]
[PARSEC] Done.
分析：
概况
stats.txt里是4570s，也就是76分钟，用的cputype是timing simple。如果用kvm只需要几秒。
分析窗口 1
在命令行窗口 1 里 显示了“ Entering event queue @ 11769812739000. Starting simulation…”，这里意味着checkpoint （在这里是11769812739000 ticks）之前的仿真被跳过。
Exiting @ tick 143338763627000 because m5_exit instruction encountered 代表 143338763627000时收到了 m5 exit 命令，仿真结束。
分析窗口2
自带的开头
下面是我的脚本内容。我的脚本script会读取m5readfile 两次，下面是第一次的脚本内容
yzzzz42Checkpointing simulation...
yzzzz44CheckpointingDone
yzzzzzz47oading old script...
。。。。跳过一些
sleep 3;
/sbin/m5 exit
下面是第二次的内容，第二次的内容是我–script指定的，与checkpoint时指定不同的脚本文件，内容如下/
yzzzzzz54oading second new script...
cd /home/gem5/parsec-benchmark; source env.sh; echo " YZZZ source done "; parsecmgmt -a run -p blackscholes -c gcc-hooks -i simsmall -n 1; sleep 5; m5 exit;
我的脚本会cat这两个内容，还是执行(bash) 这个新的脚本文件的内容。
也就是说，我的脚本会让gem5运行一个bash，跳入 /home/gem5/parsec-benchmark路径，这个路径是disk自带的。然后source当前路径下的一个文件，env .sh,这也是disk自带的。 然后shell print一个我自定义的字符串，是为了检查这个脚本有在运行。然后是运行这个disk自带的benchmark，运行完后等待一会，退出。
下面可以看出，我的echo " YZZZ source done "有成功运行，接下来的漫长等待（1小时）就不担心了。
然后是 parsecmgmt -a run -p blackscholes -c gcc-hooks -i simsmall -n 1的结果。
这个很慢，地球时间需要一些时间。运行完成后的结果是：
至此，两个命令行窗口的全部结果都显示完了。
