1# awk program to scan peerstats files and report errors/statistics 2# 3# usage: awk -f peer.awk peerstats 4# 5# format of peerstats record 6# MJD sec ident stat offset (s) delay (s) disp (s) 7# 49235 11.632 128.4.2.7 f414 -0.000041 0.21910 0.00084 8# 9# format of output dataset (time values in milliseconds) 10# peerstats.19960706 11# ident cnt mean rms max delay dist disp 12# ========================================================================== 13# 140.173.112.2 85 -0.509 1.345 4.606 80.417 49.260 1.092 14# 128.4.1.20 1364 0.058 0.364 4.465 3.712 10.540 1.101 15# 140.173.16.1 1415 -0.172 0.185 1.736 3.145 5.020 0.312 16#... 17# 18BEGIN { 19 n = 0 20 MAXDISTANCE = 1.0 21} 22# 23# scan all records in file 24# 25# we toss out all distances greater than one second on the assumption the 26# peer is in initial acquisition 27# 28{ 29 if (NF >= 7 && ($7 + $6 / 2) < MAXDISTANCE) { 30 i = n 31 for (j = 0; j < n; j++) { 32 if ($3 == peer_ident[j]) 33 i = j 34 } 35 if (i == n) { 36 peer_ident[i] = $3 37 peer_tmax[i] = peer_dist[i] = -1e9 38 peer_tmin[i] = 1e9 39 n++ 40 } 41 peer_count[i]++ 42 if ($5 > peer_tmax[i]) 43 peer_tmax[i] = $5 44 if ($5 < peer_tmin[i]) 45 peer_tmin[i] = $5 46 dist = $7 + $6 / 2 47 if (dist > peer_dist[i]) 48 peer_dist[i] = dist 49 peer_time[i] += $5 50 peer_time_rms[i] += $5 * $5 51 peer_delay[i] += $6 52 peer_disp[i] += $7 53 } 54} END { 55 printf " ident cnt mean rms max delay dist disp\n" 56 printf "==========================================================================\n" 57 for (i = 0; i < n; i++) { 58 peer_time[i] /= peer_count[i] 59 peer_time_rms[i] = sqrt(peer_time_rms[i] / peer_count[i] - peer_time[i] * peer_time[i]) 60 peer_delay[i] /= peer_count[i] 61 peer_disp[i] /= peer_count[i] 62 peer_tmax[i] = peer_tmax[i] - peer_time[i] 63 peer_tmin[i] = peer_time[i] - peer_tmin[i] 64 if (peer_tmin[i] > peer_tmax[i]) 65 peer_tmax[i] = peer_tmin[i] 66 printf "%-15s%5d%9.3f%9.3f%9.3f%9.3f%9.3f%9.3f\n", peer_ident[i], peer_count[i], peer_time[i] * 1e3, peer_time_rms[i] * 1e3, peer_tmax[i] * 1e3, peer_delay[i] * 1e3, peer_dist[i] * 1e3, peer_disp[i] * 1e3 67 } 68} 69