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Switch from -jp=n<top_n> to -jp=m<min_pct> as a threshold.

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Mike Pall 2013-09-09 02:27:41 +02:00
parent cb336995a8
commit 1fd2048c8d
1 changed files with 9 additions and 7 deletions
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16
src/jit/p.lua
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@ -32,7 +32,7 @@
-- z Show zones. Can be combined with stack dumps, e.g. zf or fz. -- z Show zones. Can be combined with stack dumps, e.g. zf or fz.
-- r Show raw sample counts. Default: show percentages. -- r Show raw sample counts. Default: show percentages.
-- G Produce output suitable for graphical tools (e.g. flame graphs). -- G Produce output suitable for graphical tools (e.g. flame graphs).
-- n<number> Show top N samples. Default: 10. -- m<number> Minimum sample percentage to be shown. Default: 3.
-- i<number> Sampling interval in milliseconds. Default: 10. -- i<number> Sampling interval in milliseconds. Default: 10.
-- --
---------------------------------------------------------------------------- ----------------------------------------------------------------------------
@ -53,7 +53,7 @@ local out
------------------------------------------------------------------------------ ------------------------------------------------------------------------------
local prof_ud local prof_ud
local prof_states, prof_split, prof_maxn, prof_raw, prof_fmt, prof_depth local prof_states, prof_split, prof_min, prof_raw, prof_fmt, prof_depth
local prof_count1, prof_count2, prof_samples local prof_count1, prof_count2, prof_samples
local map_vmmode = { local map_vmmode = {
@ -121,11 +121,13 @@ local function prof_top(count1, count2, samples, indent)
end end
sort(t, function(a, b) return count1[a] > count1[b] end) sort(t, function(a, b) return count1[a] > count1[b] end)
local raw = prof_raw local raw = prof_raw
for i=1,min(n, prof_maxn) do for i=1,n do
local k = t[i] local k = t[i]
local v = count1[k] local v = count1[k]
local pct = floor(v*100/samples + 0.5)
if pct < prof_min then break end
if not raw then if not raw then
out:write(format("%s%2d%% %s\n", indent, floor(v*100/samples + 0.5), k)) out:write(format("%s%2d%% %s\n", indent, pct, k))
elseif raw == "r" then elseif raw == "r" then
out:write(format("%s%5d %s\n", indent, v, k)) out:write(format("%s%5d %s\n", indent, v, k))
else else
@ -162,8 +164,8 @@ end
local function prof_start(mode) local function prof_start(mode)
local interval = "" local interval = ""
mode = mode:gsub("i%d*", function(s) interval = s; return "" end) mode = mode:gsub("i%d*", function(s) interval = s; return "" end)
prof_maxn = 10 prof_min = 3
mode = mode:gsub("n(%d+)", function(s) prof_maxn = tonumber(s); return "" end) mode = mode:gsub("m(%d+)", function(s) prof_min = tonumber(s); return "" end)
prof_depth = 1 prof_depth = 1
mode = mode:gsub("%-?%d+", function(s) prof_depth = tonumber(s); return "" end) mode = mode:gsub("%-?%d+", function(s) prof_depth = tonumber(s); return "" end)
local m = {} local m = {}
@ -184,7 +186,7 @@ local function prof_start(mode)
prof_fmt = flags..scope.."Z;" prof_fmt = flags..scope.."Z;"
prof_depth = -100 prof_depth = -100
prof_raw = true prof_raw = true
prof_maxn = 2147483647 prof_min = 0
elseif scope == "" then elseif scope == "" then
prof_fmt = false prof_fmt = false
else else