1*8d741a5dSApple OSS Distributions#!/usr/local/bin/recon 2*8d741a5dSApple OSS Distributions 3*8d741a5dSApple OSS Distributionslocal ktrace = require 'ktrace' 4*8d741a5dSApple OSS Distributions 5*8d741a5dSApple OSS Distributionsif arg[1] == '-h' then 6*8d741a5dSApple OSS Distributions io.stderr:write[[ 7*8d741a5dSApple OSS Distributionsusage: pirate [<trace-file-path>] 8*8d741a5dSApple OSS Distributions 9*8d741a5dSApple OSS Distributionspirate monitors for jetsam, on the high seas! 10*8d741a5dSApple OSS Distributions]] 11*8d741a5dSApple OSS Distributions os.exit(0) 12*8d741a5dSApple OSS Distributionsend 13*8d741a5dSApple OSS Distributions 14*8d741a5dSApple OSS Distributionslocal sess = ktrace.Session.new(arg[1]) 15*8d741a5dSApple OSS Distributions 16*8d741a5dSApple OSS Distributionssess:add_callback_pair('MEMSTAT_jetsam', function (start, finish) 17*8d741a5dSApple OSS Distributions local pid = finish[2] 18*8d741a5dSApple OSS Distributions local reclaimed_kb = finish[4] / 1024 19*8d741a5dSApple OSS Distributions local duration_ns = sess:ns_from_abs(finish.abstime - start.abstime) 20*8d741a5dSApple OSS Distributions print(('%12f: %32s: duration = %gus, reclaimed = %gKB'):format( 21*8d741a5dSApple OSS Distributions sess:relns_from_abs(start.abstime) / 1e9, sess:procname_for_pid(pid), 22*8d741a5dSApple OSS Distributions duration_ns / 1000, reclaimed_kb)) 23*8d741a5dSApple OSS Distributionsend) 24*8d741a5dSApple OSS Distributions 25*8d741a5dSApple OSS Distributionslocal ok, err = sess:start() 26*8d741a5dSApple OSS Distributionsif not ok then 27*8d741a5dSApple OSS Distributions io.stderr:write('pirate: failed to start tracing: ', err, '\n') 28*8d741a5dSApple OSS Distributions os.exit(1) 29*8d741a5dSApple OSS Distributionsend 30