More Related Contents:
- Does an x86 CPU reorder instructions?
- How many memory barriers instructions does an x86 CPU have?
- Why flush the pipeline for Memory Order Violation caused by other logical processors?
- Can x86 reorder a narrow store with a wider load that fully contains it?
- How does x86 pause instruction work in spinlock *and* can it be used in other scenarios?
- What happens when different CPU cores write to the same RAM address without synchronization?
- Why doesn’t GCC use partial registers?
- Enhanced REP MOVSB for memcpy
- How many CPU cycles are needed for each assembly instruction?
- Globally Invisible load instructions
- Why isn’t movl from memory to memory allowed?
- Understanding the impact of lfence on a loop with two long dependency chains, for increasing lengths
- Why does breaking the “output dependency” of LZCNT matter?
- Problems with ADC/SBB and INC/DEC in tight loops on some CPUs
- What is the stack engine in the Sandybridge microarchitecture?
- What is the “FS”/”GS” register intended for?
- What setup does REP do?
- What will be used for data exchange between threads are executing on one Core with HT?
- Slow jmp-instruction
- 32-byte aligned routine does not fit the uops cache
- Atomicity on x86
- Does it make any sense to use the LFENCE instruction on x86/x86_64 processors?
- What’s the purpose of the rotate instructions (ROL, RCL on x86)?
- Assembly – How to score a CPU instruction by latency and throughput
- Why isn’t the instruction pointer a normal register usable with MOV or ADD?
- How does a mutex lock and unlock functions prevents CPU reordering?
- x86 32 bit opcodes that differ in x86-x64 or entirely removed
- how are barriers/fences and acquire, release semantics implemented microarchitecturally?
- Is a mov to a segmentation register slower than a mov to a general purpose register?
- Fastest inline-assembly spinlock