WorkLog

• i7, collect region shape profile
• trace algorithm
• presentation, excel, table format, go
• let's do it!!!!!
• how about show top 50, including both traces and regions,  and select our own?
• collect experiment data from i72, i74, and ARM
• suitable TLB size: ARM: 13, PowerPC??
• QEMU 1.1.1 cannot run powerpc?
• strange
• ARM: lots of error, why??? not specific benchmarks, 
• i74 now run powerpc experiments
• ARM now run i386 experiments
• So, no more experiments on arm-to-x86_64?
• 
  
• Next, check status of i7 experiments,
• Add FP and ARM Host
• Running FP experiment
• 
  

WorkLog

• collect experiment data on arm host.
• error message: sh: can't create lake.out: Read-only file system
• experiment fail; re-run experiments
• collect experiment data on i72
• Ubuntu environment
• opt4+opt5+opt1+opt2+opt6+opt8+opt3-[8-16]
• collect experiment data on i74
• PowerPC to x86_64
• fail due to stupid run shell.
• re-run program
• before re-run, run gcc and see the performance chagne
• qemu V.S opt4
• 25.33 V.S 23.24.02

• enlarge tlb size:
• need to improve tlb flush time
• two approaches:
• first improve structure of TLB structure
• use helper thread to help flushing tlb
• Address Space ID: ASID
• 鬼打牆
• 在 i73 上會 segfault in cpu_unlink_tb
• why???
• ALL LOCKED!!!!

=======================================================================

• in cross-page block linking, cross-page links may be changed from VALID to INVALID.
• When will this change happen?
• 
  

apic_update_irq (s=0x218a558) at /home/tk/qemu-1.1.0/hw/apic.c:368
apic_update_irq (s=0x2189218) at /home/tk/qemu-1.1.0/hw/apic.c:376
apic_deliver_pic_intr (d=0x218a558, level=1) at /home/tk/qemu-1.1.0/hw/apic.c:182
apic_deliver_pic_intr (d=0x218a558, level=) at /home/tk/qemu-1.1.0/hw/apic.c:186
apic_local_deliver (s=0x218a558, vector=3) at /home/tk/qemu-1.1.0/hw/apic.c:151
apic_local_deliver (s=0x218a558, vector=) at /home/tk/qemu-1.1.0/hw/apic.c:177
apic_set_irq (s=0x218a558, vector_num=48, trigger_mode=0) at /home/tk/qemu-1.1.0/hw/apic.c:389
apic_set_irq (s=0x27d3b8, vector_num=, trigger_mode=0) at /home/tk/qemu-1.1.0/hw/apic.c:407
apic_update_irq (s=0x218a558) at /home/tk/qemu-1.1.0/hw/apic.c:368

• measure tlb_flush time
• measure performance on Ubuntu
• gprofiling performance of forkwait
•