Comparing instruction range: 0-50 B App Real/Sim IPC Real/Sim UPC PerfErr R/S BrMPKI UopErr ApprxIns Real/Sim L1I/L1D/L2/L3 MPKI Real L1D TLB MPKI KrnCyc KrnIns MIPS Slwdwn 434.zeusmp-ref 1.05 1.05 1.22 1.25 0.00 0.18 0.32 0.02 0.0000 0.01 / 23.71 / 7.37 / 5.61 0.00 / 23.71 / 7.35 / 5.69 0.24 0.0060 0.0006 16.2 147.0 459.GemsFDTD-ref 0.66 0.66 0.85 0.89 0.00 0.19 0.24 0.04 0.0000 0.17 / 35.63 / 29.25 / 20.39 0.10 / 35.38 / 28.32 / 20.62 1.10 0.0077 0.0023 9.1 165.6 473.astar-ref 0.56 0.56 0.63 0.62 0.00 38.82 45.65 -0.01 0.0003 0.01 / 31.96 / 22.63 / 3.07 0.00 / 29.97 / 23.08 / 3.12 1.85 0.0040 0.0033 13.3 95.7 410.bwaves-ref 1.49 1.48 1.78 1.77 0.01 4.64 4.14 0.00 0.0000 0.01 / 4.95 / 3.76 / 3.32 0.00 / 5.70 / 4.02 / 3.52 0.01 0.0143 0.0016 24.2 139.7 433.milc-ref 0.64 0.63 0.74 0.73 0.01 0.10 0.15 -0.00 0.0041 0.01 / 19.80 / 19.72 / 19.06 0.00 / 20.89 / 20.77 / 20.55 0.01 0.0117 0.0030 12.4 117.3 464.h264ref-ref 1.85 1.87 2.17 2.18 -0.01 1.56 1.56 -0.01 0.0000 0.56 / 3.55 / 2.06 / 0.02 0.49 / 3.46 / 2.02 / 0.02 0.01 0.0027 0.0006 21.8 192.1 454.calculix-ref 1.71 1.74 1.81 1.84 -0.01 1.23 1.51 0.00 0.0000 0.14 / 5.71 / 3.32 / 0.22 0.08 / 5.71 / 3.64 / 0.28 0.05 0.0060 0.0020 29.1 133.6 456.hmmer-ref 1.82 1.79 2.63 2.59 0.02 0.19 0.21 -0.00 0.0001 0.03 / 8.01 / 3.62 / 0.04 0.01 / 5.65 / 3.42 / 0.06 0.00 0.0019 0.0005 17.9 230.0 445.gobmk-ref 1.13 1.11 1.30 1.27 0.02 16.29 23.20 -0.01 0.0000 12.00 / 5.03 / 2.48 / 0.45 11.62 / 4.48 / 2.23 / 0.46 0.07 0.0023 0.0005 15.1 169.8 401.bzip2-ref 1.21 1.29 1.40 1.48 -0.06 11.67 12.75 -0.00 0.0001 0.00 / 14.33 / 8.14 / 0.08 0.00 / 14.13 / 8.52 / 0.11 0.04 0.0044 0.0007 20.0 137.8 416.gamess-ref 1.88 1.77 2.26 2.12 0.06 1.36 1.72 -0.01 0.0000 2.03 / 2.97 / 0.19 / 0.00 1.65 / 2.56 / 0.20 / 0.00 0.00 0.0016 0.0003 19.1 223.8 453.povray-ref 1.59 1.70 2.09 2.16 -0.06 3.92 2.56 -0.03 0.0000 2.25 / 10.28 / 0.20 / 0.00 1.80 / 10.51 / 0.01 / 0.00 0.61 0.0015 0.0007 15.8 228.9 462.libquantum-ref 0.55 0.59 0.48 0.52 -0.06 0.00 0.00 -0.00 0.0000 0.00 / 32.89 / 32.90 / 32.84 0.00 / 32.89 / 32.89 / 32.84 0.04 0.0027 0.0009 11.8 105.7 481.wrf-ref 1.84 2.00 1.78 1.84 -0.08 2.12 2.46 -0.05 0.0007 0.22 / 3.13 / 2.00 / 0.32 0.19 / 3.40 / 2.22 / 0.51 0.01 0.0178 0.0050 29.5 141.5 403.gcc-ref 1.10 1.02 1.31 1.19 0.08 7.43 13.47 -0.02 0.0005 6.79 / 13.13 / 6.39 / 0.65 6.63 / 12.62 / 6.32 / 0.65 1.17 0.0046 0.0019 14.9 167.6 444.namd-ref 1.62 1.77 1.81 1.97 -0.08 1.86 1.78 -0.00 0.0000 0.00 / 6.94 / 0.19 / 0.03 0.00 / 7.13 / 0.18 / 0.04 0.00 0.0022 0.0007 27.1 136.1 465.tonto-ref 1.80 1.97 2.25 2.39 -0.08 1.10 1.80 -0.03 0.0000 1.75 / 6.45 / 1.29 / 0.00 1.47 / 6.43 / 1.19 / 0.00 0.03 0.0022 0.0007 20.8 197.1 458.sjeng-ref 1.46 1.32 1.60 1.51 0.10 9.79 17.23 0.03 0.0007 1.83 / 1.61 / 0.45 / 0.29 2.32 / 1.39 / 0.57 / 0.45 0.16 0.0036 0.0005 19.1 173.0 447.dealII-ref 1.52 1.69 1.91 2.12 -0.10 3.09 3.07 -0.00 0.0000 0.24 / 5.84 / 2.25 / 0.30 0.16 / 5.86 / 2.33 / 0.40 0.60 0.0070 0.0030 21.0 164.3 400.perlbench-ref 1.62 1.47 1.87 1.69 0.11 5.87 5.68 -0.00 0.0000 6.59 / 4.05 / 1.88 / 0.04 4.40 / 3.62 / 1.65 / 0.08 0.20 0.0086 0.0023 18.3 200.9 450.soplex-ref 0.58 0.66 0.67 0.74 -0.12 5.20 5.00 -0.03 0.0011 0.10 / 26.14 / 19.39 / 13.01 0.27 / 22.76 / 18.37 / 12.36 4.29 0.0072 0.0034 12.7 103.1 482.sphinx3-ref 1.33 1.52 1.63 1.85 -0.12 3.33 2.99 -0.01 0.0001 0.07 / 16.66 / 12.50 / 0.28 0.04 / 14.91 / 12.52 / 0.47 0.31 0.0034 0.0011 17.8 169.9 435.gromacs-ref 1.12 1.31 1.37 1.59 -0.14 2.00 2.10 -0.00 0.0001 0.01 / 9.10 / 2.38 / 0.00 0.00 / 8.68 / 2.00 / 0.01 0.00 0.0014 0.0006 21.2 120.2 437.leslie3d-ref 0.69 0.60 0.86 0.80 0.15 0.13 0.72 0.07 0.0000 0.04 / 38.83 / 27.84 / 19.33 0.01 / 38.59 / 27.96 / 19.42 0.06 0.0031 0.0010 9.2 169.7 429.mcf-ref 0.44 0.38 0.50 0.43 0.17 15.23 18.29 0.01 0.0000 0.01 / 86.73 / 70.43 / 26.67 1.76 / 77.63 / 72.03 / 21.40 9.23 0.0085 0.0015 6.6 151.7 436.cactusADM-ref 0.86 1.03 1.30 1.50 -0.17 0.02 0.03 -0.04 0.0000 3.85 / 14.68 / 10.18 / 5.76 5.22 / 14.48 / 9.99 / 4.96 7.91 0.0074 0.0016 11.2 173.5 483.xalancbmk-ref 0.86 1.05 0.95 1.14 -0.18 1.98 5.74 -0.02 0.0000 5.83 / 29.48 / 28.45 / 0.33 4.20 / 27.72 / 26.90 / 0.37 3.61 0.0054 0.0027 14.0 139.1 471.omnetpp-ref 0.71 0.94 0.76 1.01 -0.25 3.75 5.14 0.01 0.0003 1.38 / 39.49 / 35.52 / 5.17 0.52 / 33.58 / 31.62 / 5.09 13.42 0.0039 0.0023 10.4 154.6 470.lbm-ref 0.64 0.87 0.73 0.99 -0.26 0.05 0.04 0.01 0.0000 0.01 / 51.68 / 31.44 / 16.06 0.00 / 53.16 / 34.25 / 16.03 0.00 0.0043 0.0008 11.5 127.0 All applications: 29 Avg abs perf error: 8.66 % (-3.78 % mean, 10.57 % std) Median-centered error: 8.54 % (-1.46 % median) Real gmean/Sim gmean: 1.046 Mean abs uop err: 0.0156 Mean approx instrs: 0.00028 HMean MIPS: 14.9 (mean 16.9) Mean slowdown: 139.1 Applications with < 2 TLB MPKI: 24 Avg abs perf error: 6.76 % (-2.25 % mean, 8.83 % std) Median-centered error: 6.76 % (0.07 % median) Real gmean/Sim gmean: 1.027 Mean abs uop err: 0.0148 Mean approx instrs: 0.00028 Build: pgo-release, rev master:2:56684e3:clean, Thu Mar 13 17:26:35 EDT 2014 Real system: Westmere L5640 @ 2.27GHz Host system: Sandy Bridge E5-2670 @ 2.6GHz Legend: IPC: Instructions per ycle UPC: Micro-ops (uops) per cycle PerfErr = (cycles_zsim - cycles_real)/cycles_real BrMPKI: Branch mispredictions per 1K instructions UopErr = uops committed in (zsim - real)/real ApprxIns: Fraction of instructions with approximate uop decoding (e.g., x87 FP) L1I/L1D/L2/L3 MPKI: Cache misses per 1K instructions Real L1D TLB MPKI: TLB misses per 1K instructions in real (zsim does not model) KrnCyc: Fraction of cycles spent in kernel mode (zsim only models userspace) KrnIns: Fraction of instrs spent in kernel mode (zsim only models userspace) MIPS: Simulation speed in MIPS Slwdwn: Slowdown = simulation (host) time in zsim / app execution time in real (note host is slightly faster than real system; this is reported to factor in the higher cost of simulating memory-intensive workloads)