test-uv-threadpool-schedule has been failing consistently in
node-daily-master CI. It also fails consistently on my personal laptop.
These changes make it pass consistently with current master but fail
consistently with Node.js 10.11 (which was the last release in the 10.x
line before the fix that the test is for). It succeeds/fails as expected
whether or not I am connected to the network.
Fixes: https://github.com/nodejs/node/issues/25305
PR-URL: https://github.com/nodejs/node/pull/25358
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Validate that massive dns lookups do not block filesytem I/O
(or any fast I/O for that matter).
Prior to https://github.com/libuv/libuv/pull/1845 few back-to-back dns
lookup were sufficient to engage libuv threadpool workers in a blocking
manner, throttling other work items that need the pool. this test acts
as a regression test for the same.
Start slow and fast I/Os together, and make sure fast I/O can complete
in at least in 1/100th of time for slow I/O.
Refs: https://github.com/libuv/libuv/pull/1845
Refs: https://github.com/nodejs/node/issues/8436
PR-URL: https://github.com/nodejs/node/pull/23099
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Rich Trott
Gireesh Punathil