1*e3723e1fSApple OSS Distributions#!/usr/local/bin/recon 2*e3723e1fSApple OSS Distributions 3*e3723e1fSApple OSS Distributionslocal ktrace = require 'ktrace' 4*e3723e1fSApple OSS Distributions 5*e3723e1fSApple OSS Distributionsif arg[1] == '-h' then 6*e3723e1fSApple OSS Distributions io.stderr:write[[ 7*e3723e1fSApple OSS Distributionsusage: pirate [<trace-file-path>] 8*e3723e1fSApple OSS Distributions 9*e3723e1fSApple OSS Distributionspirate monitors for jetsam, on the high seas! 10*e3723e1fSApple OSS Distributions]] 11*e3723e1fSApple OSS Distributions os.exit(0) 12*e3723e1fSApple OSS Distributionsend 13*e3723e1fSApple OSS Distributions 14*e3723e1fSApple OSS Distributionslocal sess = ktrace.Session.new(arg[1]) 15*e3723e1fSApple OSS Distributions 16*e3723e1fSApple OSS Distributionssess:add_callback_pair('MEMSTAT_jetsam', function (start, finish) 17*e3723e1fSApple OSS Distributions local pid = finish[2] 18*e3723e1fSApple OSS Distributions local reclaimed_kb = finish[4] / 1024 19*e3723e1fSApple OSS Distributions local duration_ns = sess:ns_from_abs(finish.abstime - start.abstime) 20*e3723e1fSApple OSS Distributions print(('%12f: %32s: duration = %gus, reclaimed = %gKB'):format( 21*e3723e1fSApple OSS Distributions sess:relns_from_abs(start.abstime) / 1e9, sess:procname_for_pid(pid), 22*e3723e1fSApple OSS Distributions duration_ns / 1000, reclaimed_kb)) 23*e3723e1fSApple OSS Distributionsend) 24*e3723e1fSApple OSS Distributions 25*e3723e1fSApple OSS Distributionslocal ok, err = sess:start() 26*e3723e1fSApple OSS Distributionsif not ok then 27*e3723e1fSApple OSS Distributions io.stderr:write('pirate: failed to start tracing: ', err, '\n') 28*e3723e1fSApple OSS Distributions os.exit(1) 29*e3723e1fSApple OSS Distributionsend 30