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The line numbers in marker stacks (shown in the tooltip or in the sidebar) should be the line number of the frame, not the line number where the function starts

2

Here is an example profile: https://perfht.ml/2LwnxbS In the cause for the "reflow" marker, the line number `24` is where the function has been defined, instead of the actual line inside...

julienw

hiddenLocalTracksByPid in the URL is too long for profiles with lots of processes

1

Example: https://profiler.firefox.com/public/j9mtns14hb5jhrwqv0ac8mbazgt97dtjerg5kk8/flame-graph/?globalTrackOrder=0wxYlxYnxYoxYmxYpwyBqyBswyBvyBr&hiddenGlobalTracks=0wnpwY0Y2wxGnxGpwxHmxHowxKfxKhwxLjxLlwyBv&hiddenLocalTracksByPid=1-0~1008-0wLb~11902-0wd~14049-0w3~14049.1-0wd~14117-0w5~14117.1-0w8~14208-01~14208.1-0wf~14266-0wxi~14604-0wn~14604.1-0wi~14606-0w5~14606.1-0w8~1471-0wxt~1519-0wx0x2wzt~1583-0wj~1613-0wt~16399-01~16399.1-0wd~16492-0wyl~16494-0wc~16535-0wxq~16645-0we~16765-0wp~16765.1-0ws~16837-01~16837.1-0we~16857-0wo~16858-0w5~16858.1-0wg~17131-0wp~17131.1-0wp~17150-0wx2~17150.1-0wx3~17352-01~17352.1-0wh~18530-0wj~18530.1-0wm~1858-0wk~18600-0w5~18600.1-0we~18672-0wr~18672.1-0wu~18711-0wj~18711.1-0wc~18779-0~18779.1-0wi~18780-01~18780.1-0wi~1879-0wg~18804-0wv~1882-0wzq~1916-0wb~1960-0wyp~1963-0wd~20595-0wb~20595.1-0wh~21963-0w2~21963.1-0w3~22309-0wk~22309.1-0wb~22315-0wt~22365-0wa~22365.1-0wa~22454-0wk~22454.1-0w5~22708-01~22714-01~22721-01~22741-01~22761-01~22781-01~22801-01~22852-0wd~2322-0wyr~23254.2-0w2~23266.2-0w2~23318.1-0wxg~2397-0wr~24219.2-01~24232.1-0wCp~24428.1-0wx5~24530.2-01~24676.2-0~24679.1-0wm~24817.1-0wt~2495-0wr~25069.1-0wxb~2538-0wyg~25874.2-0w2~26152.2-0w2~26160.3-0w9~26172.2-0w2~26180.1-0wAc~26216.2-0w2~26354.1-0wx5~26612.1-0wx6~26779.2-0w2~26850.2-0w2~26887.2-01~26898.1-0wBb~27000.1-0wx7~2714-0wg~27148.2-0w2~27174.2-0w2~27175.1-0wxr~27296.1-0wo~27439.1-0wxb~27590.2-01~27701.2-01~2784-01~28395.2-0w2~28404.3-0wd~28428.2-0w2~28448.1-0wAi~28588.1-0wxd~2859-0wA6~28710.1-0w3~28868.1-0wx7~2897-0wxl~2903-0wx0~29046.2-01~29081.2-0w2~29092.1-0wAv~2913-0wxc~29206.1-0wxe~2931-0wx3~29335.2-01~29342.1-0wxm~29374.2-0w2~29494.1-0wx7~2960-0wx0~29657.1-0wx7~29741.2-0w2~2975-0wk~29849.2-01~2987-0wxh~30083.2-01~30499.2-01~30526.3-0wd~30571.1-0wzo~30707.1-0wx8~30812.1-0wxf~3096-0wxb~30965.1-0wx8~31168.2-0w2~31208.2-0w2~31457.2-01~31495.2-0w2~3250-0wi~3250.1-0wh~3349-0wi~3349.1-0wa~3604-0wx4~3820-0wys~397-0w5~398-0w2~399-0w7~416-0w4~447-0~463-0w9~464-0wi~466-0~4778-0ws~5367-0wy6~6037-0w2~6037.1-0wc~628-0w3~641-0w2~659-0w7~660-0wyXf~6655-0wxh~673-0w4~680-0~681-0w2~684-0wxm~686-0wCn~696-0~701-0wx5~710-0~715-01~717-0~731-0wm~735-0w7~743-0w6~745-0ws~7708-0wxd~785-01~789-01~790-0~832-0w7~853-01~857-0w2~858-0w5~861-0w5~862-01~882-0w2~896-0wq~914-0w6~916-0wp~9575-0we~23081.1-0wd~23087.1-0wd~23094.1-0wd~23102.1-0wd~23135.1-0wd~23155.1-0wd~23175.1-0wd~23195.1-0wd~23208.1-0w4~23218.1-0wd~23231.1-0w2~23241.1-0wd~23254.1-01~23265.1-0wd~23266.1-01~23287-0we~23318-0wxl~23354-0wAc~23380-0wm~23413-0wu~23430-0wz7~23440-0wxo~23501-0wp~23552-0wx8~23571-0ws~23607-0wq~23694-0wy4~23721-0wx6~23855-0wp~23988-0wi~24017-0wxj~24035-0wxi~24154-0wxo~24210.1-0wd~24219-0~24219.1-01~24232-0wsuwGb~24278-0wu~24374.1-0wd~24428-0wkmwyo~24523-0~24523.1-0wd~24530.1-0w2~24586.1-0wd~24611.1-0w3~24679-0wy4~24817-0wxi~24904-0wi~25027.1-0we~25029.1-0w3~25069-0wlnwxp~25234.1-0wd~25237.1-0w4~25698.1-01~25860.1-0wd~25874.1-01~26147.1-0wd~26152.1-01~26160.2-0wr~26171.1-0wd~26172-01~26172.1-01~26180-0wprwvx1wAjAlwCd~26216-01~26216.1-01~26354-0wkmwye~26448-0wprwxo~26612-0wkmwxi~26758.1-0wd~26779.1-01~26790-0wr~26848.1-0wd~26850.1-01~26885.1-0we~26887-01~26887.1-01~26898-0wqstvwAuB7B9wD4~26917-01~26917.1-0w2~27000-0wkmwy1~27147-0~27147.1-0wd~27148.1-01~27159-0~27159.1-0wd~27174.1-01~27175-0wkmwxv~27296-0wkmwyr~27400-0wn~27439-0wkmwxj~27588.1-0wd~27590-01~27590.1-01~27690.1-01~27699.1-0wd~27701.1-01~28006.1-0wd~28008.1-0w2~28375.1-0we~28395.1-01~28404-0w7~28404.2-0wr~28424.1-0wd~28428-01~28428.1-01~28448-0wqstvwAsAuwC8~28481-01~28481.1-01~28588-0wkmwy8~28710-0wkmwxj~28868-0wkmwxj~29001.1-0wd~29024.1-0w2~29044.1-0wd~29046-0~29046.1-01~29079.1-0wd~29081.1-01~29092-0wprsuwApArwCj~29206-0wjmwxt~29331-0~29331.1-0wd~29335.1-01~29342-0wkmwy0~29369-0~29369.1-0wd~29374.1-01~29466.1-01~29494-0woqwyr~29657-0wkmwxk~29739.1-0wd~29741.1-01~29846.1-0wd~29849.1-0w2~30081.1-0wd~30083.1-01~30497.1-0wd~30499.1-01~30526.2-0ws~30534.1-0wd~30536-01~30536.1-0w2~30571-0wrtux0wArAtwC8~30707-0wkmwya~30812-0wjlwxj~30965-0wkmwxi~31114.1-0wd~31138-01~31138.1-0w2~31166.1-0wd~31168.1-01~31195.1-01~31206.1-0we~31208.1-01~31219-0wqstvwAvB1wBu~31328-0wkmwxr~31449-0~31449.1-0wd~31457.1-01~31469-0wkmwxk~31480-0~31480.1-0wf~31495.1-01~31611-0wlnwxm~31710-0wkmwxh&localTrackOrderByPid=1519-xnxo2xpwy2zmy3wy7zky83wmy9wybnwrycwyetsuyfztygyhvyqwyuyiwypyvwzhx0x2zlznwzsx3wx81x9wxe0xfwxmzizjx1&range=9907m7527&symbolServer=http%3A%2F%2F127.0.0.1%3A3000%2F3gxncssi1fh7pksf0p0j5jjqammrbqlak3zh13a&thread=Uj&transforms=ff-8&v=10 Most of the processes are hidden. For the hidden processes, I don't think the URL needs to store state about which of their local tracks (i.e. threads) are...

mstange

Annotate profiles when slowdowns with known causes are detected

2

Recently we had someone asking about a profile that seemed to be spending a lot of time capturing the stack. It turns out, that this only happens if a non-standard...

mgaudet

See https://github.com/firefox-devtools/profiler/pull/5364#pullrequestreview-2641268253 ┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-882)

fqueze

Back/forward broken after using tab selector

1

Steps to reproduce: 1. Go to https://share.firefox.dev/3DerpuE 2. Click on "Full Range" in the top left corner. 3. Click on "Proton VPN: Fast & Secure" in the dropdown list 4....

mstange

Add an optional plot in the memory track for "physical memory"

1

The memory track in the profiler shows memory allocated with malloc() and free(). However bookkeeping, fragmentation and a cache of "dirty memory" all mean that the actual amount of physical...

PaulBone

If a JS function is JIT compiled multiple times, then it's currently impossible to see the assembly code for each compilation. If you double-click the call node for the function,...

mstange

respect prefers-color-scheme

1

it'd be nice if there was a dark theme for users with (prefers-color-scheme: dark). devtools and the browser itself follow it, it'd be nice if the profiler did too. ┆Issue...

easrng

ActivityGraph tooltip doesn't support window.persistTooltips

2

`window.persistTooltips = true` is a useful trick we use to debug our tooltips. Unfortunately the ActivityGraph tooltip doesn't support it. ┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-455)

julienw

Nicer import of chrome-trace profiles generated by gradle-profiler.

1

gradle-profiler can generate profiles in the chrome-trace format, that we can import. Here's an example profile using our current importer: https://share.firefox.dev/3Q4P7g0 Same profile imported with the PR applied: https://share.firefox.dev/3EplC5N

fqueze