Related Contents:
- What is the best way to set a register to zero in x86 assembly: xor, mov or and?
- INC instruction vs ADD 1: Does it matter?
- Is performance reduced when executing loops whose uop count is not a multiple of processor width?
- Why is this SSE code 6 times slower without VZEROUPPER on Skylake?
- Why does breaking the “output dependency” of LZCNT matter?
- Is there a penalty when base+offset is in a different page than the base?
- Branch alignment for loops involving micro-coded instructions on Intel SnB-family CPUs
- What methods can be used to efficiently extend instruction length on modern x86?
- Non-temporal loads and the hardware prefetcher, do they work together?
- Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
- Which Intel microarchitecture introduced the ADC reg,0 single-uop special case?
- Can modern x86 implementations store-forward from more than one prior store?
- Modern x86 cost model
- Is it useful to use VZEROUPPER if your program+libraries contain no SSE instructions?
- Why are loops always compiled into “do…while” style (tail jump)?
- Why does mulss take only 3 cycles on Haswell, different from Agner’s instruction tables? (Unrolling FP loops with multiple accumulators)
- Enhanced REP MOVSB for memcpy
- How many CPU cycles are needed for each assembly instruction?
- Adding a redundant assignment speeds up code when compiled without optimization
- Why is Skylake so much better than Broadwell-E for single-threaded memory throughput?
- Why is the loop instruction slow? Couldn’t Intel have implemented it efficiently?
- Understanding the impact of lfence on a loop with two long dependency chains, for increasing lengths
- How are x86 uops scheduled, exactly?
- How can I accurately benchmark unaligned access speed on x86_64?
- What are the latency and throughput costs of producer-consumer sharing of a memory location between hyper-siblings versus non-hyper siblings?
- What is the purpose of the EBP frame pointer register?
- What happens after a L2 TLB miss?
- What setup does REP do?
- Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures?
- Can long integer routines benefit from SSE?
- clflush to invalidate cache line via C function
- Are there any modern CPUs where a cached byte store is actually slower than a word store?
- 32-byte aligned routine does not fit the uops cache
- When, if ever, is loop unrolling still useful?
- Size of store buffers on Intel hardware? What exactly is a store buffer?
- Is ADD 1 really faster than INC ? x86 [duplicate]
- How to merge a scalar into a vector without the compiler wasting an instruction zeroing upper elements? Design limitation in Intel’s intrinsics?
- Lost Cycles on Intel? An inconsistency between rdtsc and CPU_CLK_UNHALTED.REF_TSC
- Latency bounds and throughput bounds for processors for operations that must occur in sequence
- What’s the actual effect of successful unaligned accesses on x86?
- Fast vectorized rsqrt and reciprocal with SSE/AVX depending on precision
- Header files for x86 SIMD intrinsics
- How are cache memories shared in multicore Intel CPUs?
- Unexpectedly poor and weirdly bimodal performance for store loop on Intel Skylake
- DataFrame / Dataset groupBy behaviour/optimization
- Loop with function call faster than an empty loop
- How to sum __m256 horizontally?
- The Effect of Architecture When Using SSE / AVX Intrinisics
- How Do I Measure the Performance of my AngularJS app’s digest Cycle?
- R: speeding up “group by” operations