1*27b03b36SApple OSS Distributions#!/usr/local/bin/recon 2*27b03b36SApple OSS Distributions 3*27b03b36SApple OSS Distributionslocal ktrace = require 'ktrace' 4*27b03b36SApple OSS Distributions 5*27b03b36SApple OSS Distributionsif arg[1] == '-h' then 6*27b03b36SApple OSS Distributions io.stderr:write[[ 7*27b03b36SApple OSS Distributionsusage: pirate [<trace-file-path>] 8*27b03b36SApple OSS Distributions 9*27b03b36SApple OSS Distributionspirate monitors for jetsam, on the high seas! 10*27b03b36SApple OSS Distributions]] 11*27b03b36SApple OSS Distributions os.exit(0) 12*27b03b36SApple OSS Distributionsend 13*27b03b36SApple OSS Distributions 14*27b03b36SApple OSS Distributionslocal sess = ktrace.Session.new(arg[1]) 15*27b03b36SApple OSS Distributions 16*27b03b36SApple OSS Distributionssess:add_callback_pair('MEMSTAT_jetsam', function (start, finish) 17*27b03b36SApple OSS Distributions local pid = finish[2] 18*27b03b36SApple OSS Distributions local reclaimed_kb = finish[4] / 1024 19*27b03b36SApple OSS Distributions local duration_ns = sess:ns_from_abs(finish.abstime - start.abstime) 20*27b03b36SApple OSS Distributions print(('%12f: %32s: duration = %gus, reclaimed = %gKB'):format( 21*27b03b36SApple OSS Distributions sess:relns_from_abs(start.abstime) / 1e9, sess:procname_for_pid(pid), 22*27b03b36SApple OSS Distributions duration_ns / 1000, reclaimed_kb)) 23*27b03b36SApple OSS Distributionsend) 24*27b03b36SApple OSS Distributions 25*27b03b36SApple OSS Distributionslocal ok, err = sess:start() 26*27b03b36SApple OSS Distributionsif not ok then 27*27b03b36SApple OSS Distributions io.stderr:write('pirate: failed to start tracing: ', err, '\n') 28*27b03b36SApple OSS Distributions os.exit(1) 29*27b03b36SApple OSS Distributionsend 30