Sean Feng

disk I/O error when doing queries with WASI + Wasmer-JS

8

Hi, I am trying to use `preopens` to provide file access to WebAssembly, and it works fine to create a connection with the given database file. However, whenever I try...

Why does SpeedIndex have second as their unit?

3

Looks like starting from this [commit](https://github.com/sitespeedio/browsertime/commit/296b78bd5713ef096e5643a8bab54167cd68cac7), `SpeedIndex` is interpreted as a time, this feels weird and incorrect.

[Firefox] Present the graph of visual metrics in profiler without the need of profiler screenshots.

4

Using browsertime to collect firefox profiles allow the profiler to present a visual metrics graph, [here's an example](https://profiler.firefox.com/public/7788671ed67417b9acd056310b99715892ffefe1/calltree/?globalTrackOrder=5-6-7-4-0-1-2-3&hiddenGlobalTracks=1-2&localTrackOrderByPid=21091-1-2-0~21094-0~21092-0~21093-0-1~&thread=4&v=4), but this graph would only be presented if you have `screenshots` as...

VisualMetric progress generates null timestamp when Gecko profile is on and windowRecorder is off

1

Sample output ``` "ContentfulSpeedIndexProgress": [ { "percent": 0, "timestamp": null }, { "percent": 81, "timestamp": null }, { "percent": 81, "timestamp": null } ...... ``` These null timestamps are not...

Timestamp-overlay-added video misses some frames compare to the input video

2

One thing we noticed is that the timestamp-overlay-added video misses some frames compare to the input video. I used this command `ffprobe -select_streams v -show_packets | grep pts_time` to get...

My experience is that doing a formatting on a large file may block the UI. Is possible to do the formatting on a difference thread or something? I think Vim8...

Clarify the behaviour of Javascript Validation when we are waiting for the full body

1

There is [test](https://searchfox.org/mozilla-central/rev/8fd39dc89c68501a354446a8681ec8263d15e5aa/testing/web-platform/tests/fetch/api/abort/general.any.js#362,365-368,376) which expects the `window.fetch` to be resolved while the server is sending the response. If ORB is compatible with this behaviour, then it means ORB will allow...

rr crashes during replay

2

I have an rr-recording that I keep getting crashes when I execute something like `p aNode->IsContent()`. ``` [New Thread 1771423.1771536] rr(_ZN2rr13dump_rr_stackEv+0x47)[0x55c94145c4b0] rr(_ZN2rr9GdbServer15emergency_debugEPNS_4TaskE+0xf7)[0x55c94124e275] rr(+0x41b7bf)[0x55c9412867bf] rr(_ZN2rr21EmergencyDebugOstreamD1Ev+0x5f)[0x55c941286a51] rr(+0x35eadd)[0x55c9411c9add] rr(_ZN2rr18AutoRemoteSyscalls12send_fd_archINS_7X64ArchEEEiRKNS_8ScopedFdE+0x191)[0x55c9411cea0b] rr(_ZN2rr18AutoRemoteSyscalls7send_fdERKNS_8ScopedFdE+0xab)[0x55c9411c78b9] rr(_ZN2rr18AutoRemoteSyscalls27infallible_send_fd_if_aliveERKNS_8ScopedFdE+0x33)[0x55c9411c796f] rr(_ZN2rr7Session18create_shared_mmapERNS_18AutoRemoteSyscallsEmNS_10remote_ptrIvEEPKciiSt10shared_ptrINS_21MonitoredSharedMemoryEE+0x5ef)[0x55c9413ebad9] rr(_ZN2rr12AddressSpace13post_vm_cloneEPNS_4TaskE+0xff)[0x55c94119e38b]...

I have a key combination like this ``` ~j + ~k run some command ``` With this, if I do a command like `man man`, long pressing `j` would scroll...