1*4d495c6eSApple OSS Distributions#!/usr/local/bin/recon 2*4d495c6eSApple OSS Distributions 3*4d495c6eSApple OSS Distributionslocal ktrace = require 'ktrace' 4*4d495c6eSApple OSS Distributions 5*4d495c6eSApple OSS Distributionsif arg[1] == '-h' then 6*4d495c6eSApple OSS Distributions io.stderr:write[[ 7*4d495c6eSApple OSS Distributionsusage: pirate [<trace-file-path>] 8*4d495c6eSApple OSS Distributions 9*4d495c6eSApple OSS Distributionspirate monitors for jetsam, on the high seas! 10*4d495c6eSApple OSS Distributions]] 11*4d495c6eSApple OSS Distributions os.exit(0) 12*4d495c6eSApple OSS Distributionsend 13*4d495c6eSApple OSS Distributions 14*4d495c6eSApple OSS Distributionslocal sess = ktrace.Session.new(arg[1]) 15*4d495c6eSApple OSS Distributions 16*4d495c6eSApple OSS Distributionssess:add_callback_pair('MEMSTAT_jetsam', function (start, finish) 17*4d495c6eSApple OSS Distributions local pid = finish[2] 18*4d495c6eSApple OSS Distributions local reclaimed_kb = finish[4] / 1024 19*4d495c6eSApple OSS Distributions local duration_ns = sess:ns_from_abs(finish.abstime - start.abstime) 20*4d495c6eSApple OSS Distributions print(('%12f: %32s: duration = %gus, reclaimed = %gKB'):format( 21*4d495c6eSApple OSS Distributions sess:relns_from_abs(start.abstime) / 1e9, sess:procname_for_pid(pid), 22*4d495c6eSApple OSS Distributions duration_ns / 1000, reclaimed_kb)) 23*4d495c6eSApple OSS Distributionsend) 24*4d495c6eSApple OSS Distributions 25*4d495c6eSApple OSS Distributionslocal ok, err = sess:start() 26*4d495c6eSApple OSS Distributionsif not ok then 27*4d495c6eSApple OSS Distributions io.stderr:write('pirate: failed to start tracing: ', err, '\n') 28*4d495c6eSApple OSS Distributions os.exit(1) 29*4d495c6eSApple OSS Distributionsend 30