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graviton4.py
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# Measure performance break down
def graviton4(pmu, args):
inst_spec = pmu.value[27]
inst_retired = pmu.value[8]
cpu_cycles = pmu.value[17]
stall_frontend = pmu.value[35]
stall_backend = pmu.value[36]
dtlb_walk = pmu.value[52]
itlb_walk = pmu.value[53]
l1i_tlb = pmu.value[38]
l1i_tlb_refill = pmu.value[2]
l1d_tlb = pmu.value[37]
l1d_tlb_refill = pmu.value[5]
l2d_tlb = pmu.value[47]
l2d_tlb_refill = pmu.value[45]
l1i_cache = pmu.value[20]
l1i_cache_refill = pmu.value[1]
l1d_cache = pmu.value[4]
l1d_cache_refill = pmu.value[3]
l1d_cache_wb = pmu.value[21]
l2d_cache_refill = pmu.value[23]
l2d_cache_wb = pmu.value[24]
l2d_cache = pmu.value[22]
ll_cache_rd = pmu.value[54]
ll_cache_miss_rd = pmu.value[55]
br_immed_spec = pmu.value[113]
br_indirect_spec = pmu.value[115]
ld_spec = pmu.value[105]
st_spec = pmu.value[106]
dp_spec = pmu.value[108]
vfp_spec = pmu.value[110]
ase_inst_spec = pmu.value[284]
sve_inst_spec = pmu.value[285]
fp_fixed_ops_spec = pmu.value[449]
fp_scale_ops_spec = pmu.value[448]
time = cpu_cycles/ pmu.CPU_CLOCK/1000000000
IPC = inst_retired/cpu_cycles
GFLOPS = (fp_scale_ops_spec*(pmu.SVE_VEC_LEN/128)+fp_fixed_ops_spec)/(cpu_cycles/pmu.CPU_CLOCK)
frontend_stalled_cycles = stall_frontend/ cpu_cycles* 100
backend_stalled_cycles = stall_backend/ cpu_cycles* 100
retiring_cycles = 100 - backend_stalled_cycles - frontend_stalled_cycles
read_bw = ll_cache_miss_rd * 64 / (cpu_cycles/pmu.CPU_CLOCK)
# write_bw = It is impossible to measure write writeback bandwidth since counter is not implemented.
if args.noheader != True:
print(f"time(sec), {time:.2f}")
print(f"IPC(Retired), {IPC:.2f}")
print(f"GFLOPS, {GFLOPS:.2f}")
print(f"R_BW(GB/s), {read_bw:.2f}")
print(f"W_BW(GB/s)")
print("# Performance break down")
print(f" cycle_backend_stalled, {backend_stalled_cycles:.2f}")
print(f" cycle_frontend_stalled, {frontend_stalled_cycles:.2f}")
print(f" cycle_retiring, {retiring_cycles:.2f}")
else:
print(f"{time:.2f}")
print(f"{IPC:.2f}")
print(f"{GFLOPS:.2f}")
print(f"{read_bw:.2f}")
print()
print()
print(f"{backend_stalled_cycles:.2f}")
print(f"{frontend_stalled_cycles:.2f}")
print(f"{retiring_cycles:.2f}")
for denomi in [inst_spec/100, cpu_cycles]:
branch =(br_immed_spec+ br_indirect_spec) / denomi
integer_dp = dp_spec/ denomi
scalar_fp = vfp_spec/ denomi
load = ld_spec/ denomi
store = st_spec/ denomi
neon_simd = ase_inst_spec/ denomi
sve_simd = sve_inst_spec/ denomi
others = inst_spec/denomi - branch - integer_dp - scalar_fp - neon_simd - sve_simd
if args.noheader != True:
if denomi == inst_spec/100:
print(f"# Instruction Mix(%)")
elif denomi == cpu_cycles:
print(f"# Instruction per Cycle(Spec)")
print(f" branch, {branch:.2f}")
print(f" integer_dp, {integer_dp:.2f}")
print(f" scalar_fp, {scalar_fp:.2f}")
print(f" load, {load:.2f}")
print(f" store, {store:.2f}")
print(f" asimd_simd, {neon_simd:.2f}")
print(f" sve_simd, {sve_simd:.2f}")
print(f" others, {others:.2f}")
else:
print()
print(f"{branch:.2f}")
print(f"{integer_dp:.2f}")
print(f"{scalar_fp:.2f}")
print(f"{load:.2f}")
print(f"{store:.2f}")
print(f"{neon_simd:.2f}")
print(f"{sve_simd:.2f}")
print(f"{others:.2f}")
l1d_cache_refill_mpki = l1d_cache_refill/ inst_retired* 1000
l1d_cache_wb_mpki = l1d_cache_wb/ inst_retired* 1000
l2_cache_refill_mpki = l2d_cache_refill/ inst_retired* 1000
l2_cache_wb_mpki = l2d_cache_wb/ inst_retired* 1000
ll_cache_read_mpki = ll_cache_miss_rd/ inst_retired* 1000
l1d_cache_refill_ratio = l1d_cache_refill/ l1d_cache* 100
l1d_cache_wb_ratio = l1d_cache_wb/ l1d_cache* 100
l2_cache_refill_ratio = l2d_cache_refill/ l2d_cache* 100
l2_cache_wb_ratio = l2d_cache_wb/ l2d_cache* 100
ll_cache_read_miss_ratio = ll_cache_miss_rd/ ll_cache_rd* 100
if args.noheader != True:
print("# Cache Effectiveness")
print(f" l1d_cache_refill_mpki, {l1d_cache_refill_mpki:.2f}")
print(f" l1d_cache_wb_mpki, {l1d_cache_wb_mpki:.2f}")
print(f" l2_cache_refill_mpki, {l2_cache_refill_mpki:.2f}")
print(f" l2_cache_wb_mpki, {l2_cache_wb_mpki:.2f}")
print(f" ll_cache_read_mpki, {ll_cache_read_mpki:.2f}")
print(f" l1d_cache_refill_ratio, {l1d_cache_refill_ratio:.2f}")
print(f" l1d_cache_wb_ratio, {l1d_cache_wb_ratio:.2f}")
print(f" l2_cache_refill_ratio, {l2_cache_refill_ratio:.2f}")
print(f" l2_cache_wb_ratio, {l2_cache_wb_ratio:.2f}")
print(f" ll_cache_read_miss_ratio, {ll_cache_read_miss_ratio:.2f}")
else:
print()
print(f"{l1d_cache_refill_mpki:.2f}")
print(f"{l1d_cache_wb_mpki:.2f}")
print(f"{l2_cache_refill_mpki:.2f}")
print(f"{l2_cache_wb_mpki:.2f}")
print(f"{ll_cache_read_mpki:.2f}")
print(f"{l1d_cache_refill_ratio:.2f}")
print(f"{l1d_cache_wb_ratio:.2f}")
print(f"{l2_cache_refill_ratio:.2f}")
print(f"{l2_cache_wb_ratio:.2f}")
print(f"{ll_cache_read_miss_ratio:.2f}")
itlb_mpki = itlb_walk/ inst_retired* 1000
dtlb_mpki = dtlb_walk/ inst_retired* 1000
l1i_tlb_mpki = l1i_tlb_refill/ inst_retired* 1000
l1d_tlb_mpki = l1d_tlb_refill/ inst_retired* 1000
l2_tlb_mpki = l2d_tlb_refill/ inst_retired* 1000
itlb_walk_ratio = itlb_walk/ l1i_tlb* 100
dtlb_walk_ratio = dtlb_walk/ l1d_tlb* 100
l1i_tlb_miss_ratio = l1i_tlb_refill/ l1i_tlb* 100
l1d_tlb_miss_ratio = l1d_tlb_refill/ l1d_tlb* 100
l2_tlb_miss_ratio = l2d_tlb_refill/ l2d_tlb* 100
if args.noheader != True:
print("# TLB Effectiveness")
print(f" itlb_mpki, {itlb_mpki:.2f}")
print(f" dtlb_mpki, {dtlb_mpki:.2f}")
print(f" l1i_tlb_mpki, {l1i_tlb_mpki:.2f}")
print(f" l1d_tlb_mpki, {l1d_tlb_mpki:.2f}")
print(f" l2_tlb_mpki, {l2_tlb_mpki:.2f}")
print(f" itlb_walk_ratio, {itlb_walk_ratio:.2f}")
print(f" dtlb_walk_ratio, {dtlb_walk_ratio:.2f}")
print(f" l1i_tlb_miss_ratio, {l1i_tlb_miss_ratio:.2f}")
print(f" l1d_tlb_miss_ratio, {l1d_tlb_miss_ratio:.2f}")
print(f" l2_tlb_miss_ratio, {l2_tlb_miss_ratio:.2f}")
else:
print()
print(f"{itlb_mpki:.2f}")
print(f"{dtlb_mpki:.2f}")
print(f"{l1i_tlb_mpki:.2f}")
print(f"{l1d_tlb_mpki:.2f}")
print(f"{l2_tlb_mpki:.2f}")
print(f"{itlb_walk_ratio:.2f}")
print(f"{dtlb_walk_ratio:.2f}")
print(f"{l1i_tlb_miss_ratio:.2f}")
print(f"{l1d_tlb_miss_ratio:.2f}")
print(f"{l2_tlb_miss_ratio:.2f}")