diff options
Diffstat (limited to 'tex/context/base/trac-inf.lua')
| -rw-r--r-- | tex/context/base/trac-inf.lua | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/tex/context/base/trac-inf.lua b/tex/context/base/trac-inf.lua new file mode 100644 index 000000000..72f03675a --- /dev/null +++ b/tex/context/base/trac-inf.lua @@ -0,0 +1,197 @@ +if not modules then modules = { } end modules ['trac-inf'] = { + version = 1.001, + comment = "companion to trac-inf.mkiv", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local format = string.format + +local statusinfo, n, registered = { }, 0, { } + +statistics = statistics or { } + +statistics.enable = true +statistics.threshold = 0.05 + +-- timing functions + +local clock = os.gettimeofday or os.clock + +local notimer + +function statistics.hastimer(instance) + return instance and instance.starttime +end + +function statistics.resettiming(instance) + if not instance then + notimer = { timing = 0, loadtime = 0 } + else + instance.timing, instance.loadtime = 0, 0 + end +end + +function statistics.starttiming(instance) + if not instance then + notimer = { } + instance = notimer + end + local it = instance.timing + if not it then + it = 0 + end + if it == 0 then + instance.starttime = clock() + if not instance.loadtime then + instance.loadtime = 0 + end + else +--~ logs.report("system","nested timing (%s)",tostring(instance)) + end + instance.timing = it + 1 +end + +function statistics.stoptiming(instance, report) + if not instance then + instance = notimer + end + if instance then + local it = instance.timing + if it > 1 then + instance.timing = it - 1 + else + local starttime = instance.starttime + if starttime then + local stoptime = clock() + local loadtime = stoptime - starttime + instance.stoptime = stoptime + instance.loadtime = instance.loadtime + loadtime + if report then + statistics.report("load time %0.3f",loadtime) + end + instance.timing = 0 + return loadtime + end + end + end + return 0 +end + +function statistics.elapsedtime(instance) + if not instance then + instance = notimer + end + return format("%0.3f",(instance and instance.loadtime) or 0) +end + +function statistics.elapsedindeed(instance) + if not instance then + instance = notimer + end + local t = (instance and instance.loadtime) or 0 + return t > statistics.threshold +end + +function statistics.elapsedseconds(instance,rest) -- returns nil if 0 seconds + if statistics.elapsedindeed(instance) then + return format("%s seconds %s", statistics.elapsedtime(instance),rest or "") + end +end + +-- general function + +function statistics.register(tag,fnc) + if statistics.enable and type(fnc) == "function" then + local rt = registered[tag] or (#statusinfo + 1) + statusinfo[rt] = { tag, fnc } + registered[tag] = rt + if #tag > n then n = #tag end + end +end + +function statistics.show(reporter) + if statistics.enable then + if not reporter then reporter = function(tag,data,n) texio.write_nl(tag .. " " .. data) end end + -- this code will move + local register = statistics.register + register("luatex banner", function() + return string.lower(status.banner) + end) + register("control sequences", function() + return format("%s of %s", status.cs_count, status.hash_size+status.hash_extra) + end) + register("callbacks", function() + local total, indirect = status.callbacks or 0, status.indirect_callbacks or 0 + return format("direct: %s, indirect: %s, total: %s", total-indirect, indirect, total) + end) + register("current memory usage", statistics.memused) + register("runtime",statistics.runtime) +-- -- + for i=1,#statusinfo do + local s = statusinfo[i] + local r = s[2]() + if r then + reporter(s[1],r,n) + end + end + texio.write_nl("") -- final newline + statistics.enable = false + end +end + +function statistics.show_job_stat(tag,data,n) + texio.write_nl(format("%-15s: %s - %s","mkiv lua stats",tag:rpadd(n," "),data)) +end + +function statistics.memused() -- no math.round yet -) + local round = math.round or math.floor + return format("%s MB (ctx: %s MB)",round(collectgarbage("count")/1000), round(status.luastate_bytes/1000000)) +end + +if statistics.runtime then + -- already loaded and set +elseif luatex and luatex.starttime then + statistics.starttime = luatex.starttime + statistics.loadtime = 0 + statistics.timing = 0 +else + statistics.starttiming(statistics) +end + +function statistics.runtime() + statistics.stoptiming(statistics) + return statistics.formatruntime(statistics.elapsedtime(statistics)) +end + +function statistics.formatruntime(runtime) + return format("%s seconds", statistics.elapsedtime(statistics)) +end + +function statistics.timed(action,report) + local timer = { } + report = report or logs.simple + statistics.starttiming(timer) + action() + statistics.stoptiming(timer) + report("total runtime: %s",statistics.elapsedtime(timer)) +end + +-- where, not really the best spot for this: + +commands = commands or { } + +local timer + +function commands.resettimer() + statistics.resettiming(timer) + statistics.starttiming(timer) +end + +function commands.elapsedtime() + statistics.stoptiming(timer) + tex.sprint(statistics.elapsedtime(timer)) +end + +commands.resettimer() |