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Task
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Resolution: Done
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Major
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Blue Ocean 1.4 - beta 3
There are increasing reports that initial loads are worse and worse (looking at master, and 1.3).
rtyler reported that loading 2 fonts is taking 4 seconds (each, in parallel, even though they are only 70KB each). They must be some amazing fonts.
Scope:
- Find out why fonts take 4 seconds to load each https://i.imgur.com/679C44p.png
- Mostly investigation. Result may be that we need "sane" code splitting and then minification, tree shaking etc(things I know kzantow wants to take a look at) but may be lower hanging fruit in short term so it doesn't appear so bad.
A tool like https://gtmetrix.com/reports/ci.blueocean.io/FI3cg80T shows cold load analysis. The time shown is more ideal for low latency connection, in reality can be up to a minute for people on modest connections. So anytime there is a delay in the waterfall, you can magnify that for users who have no ideal latency
Take a look at the waterfall on that link. Note there is a cascade in the middle with loading the dashboard and other plugins and localisation files it looks like - that seems new (ish).
Note this network timeline from Tyler: https://i.imgur.com/679C44p.png - fon'ts are taking 4 seconds to load (70kb each) ???
[JENKINS-48528] Investigate very slow cold loading of webapp fonts (and slow water fall)
| Epic Link | New: JENKINS-35761 [ 171656 ] |
| Sprint | New: Blue Ocean 1.4 - beta 3 [ 416 ] |
| Assignee | New: Cliff Meyers [ cliffmeyers ] |
| Description |
Original:
There are increasing reports that initial loads are worse and worse (looking at master, and 1.3). A tool like [https://gtmetrix.com/reports/ci.blueocean.io/FI3cg80T] shows cold load analysis. The time shown is more ideal for low latency connection, in reality can be up to a minute for people on modest connections. So anytime there is a delay in the waterfall, you can magnify that for users who have no ideal latency Take a look at the waterfall on that link. Note there is a cascade in the middle with loading the dashboard and other plugins and localisation files it looks like - that seems new (ish). Scope: * Mostly investigation. Result may be that we need "sane" code splitting and then minification, tree shaking etc(things I know [~kzantow] wants to take a look at) but may be lower hanging fruit in short term so it doesn't appear so bad. |
New:
There are increasing reports that initial loads are worse and worse (looking at master, and 1.3). A tool like [https://gtmetrix.com/reports/ci.blueocean.io/FI3cg80T] shows cold load analysis. The time shown is more ideal for low latency connection, in reality can be up to a minute for people on modest connections. So anytime there is a delay in the waterfall, you can magnify that for users who have no ideal latency Take a look at the waterfall on that link. Note there is a cascade in the middle with loading the dashboard and other plugins and localisation files it looks like - that seems new (ish). Scope: * Mostly investigation. Result may be that we need "sane" code splitting and then minification, tree shaking etc(things I know [~kzantow] wants to take a look at) but may be lower hanging fruit in short term so it doesn't appear so bad. * Find out why fonts take 4 seconds to load each https://i.imgur.com/679C44p.png |
| Description |
Original:
There are increasing reports that initial loads are worse and worse (looking at master, and 1.3). A tool like [https://gtmetrix.com/reports/ci.blueocean.io/FI3cg80T] shows cold load analysis. The time shown is more ideal for low latency connection, in reality can be up to a minute for people on modest connections. So anytime there is a delay in the waterfall, you can magnify that for users who have no ideal latency Take a look at the waterfall on that link. Note there is a cascade in the middle with loading the dashboard and other plugins and localisation files it looks like - that seems new (ish). Scope: * Mostly investigation. Result may be that we need "sane" code splitting and then minification, tree shaking etc(things I know [~kzantow] wants to take a look at) but may be lower hanging fruit in short term so it doesn't appear so bad. * Find out why fonts take 4 seconds to load each https://i.imgur.com/679C44p.png |
New:
There are increasing reports that initial loads are worse and worse (looking at master, and 1.3). A tool like [https://gtmetrix.com/reports/ci.blueocean.io/FI3cg80T] shows cold load analysis. The time shown is more ideal for low latency connection, in reality can be up to a minute for people on modest connections. So anytime there is a delay in the waterfall, you can magnify that for users who have no ideal latency Take a look at the waterfall on that link. Note there is a cascade in the middle with loading the dashboard and other plugins and localisation files it looks like - that seems new (ish). Note this network timeline from Tyler: [https://i.imgur.com/679C44p.png] - fon'ts are taking 4 seconds to load (70kb each) ??? Scope: * Mostly investigation. Result may be that we need "sane" code splitting and then minification, tree shaking etc(things I know [~kzantow] wants to take a look at) but may be lower hanging fruit in short term so it doesn't appear so bad. * Find out why fonts take 4 seconds to load each [https://i.imgur.com/679C44p.png] |
| Attachment | New: Selection_297.png [ 40674 ] |
| Summary | Original: Investigate very slow waterfall loading cold loading of webapp | New: Investigate very slow cold loading of webapp fonts (and slow water fall) |
| Labels | New: codevalet |
| Description |
Original:
There are increasing reports that initial loads are worse and worse (looking at master, and 1.3). A tool like [https://gtmetrix.com/reports/ci.blueocean.io/FI3cg80T] shows cold load analysis. The time shown is more ideal for low latency connection, in reality can be up to a minute for people on modest connections. So anytime there is a delay in the waterfall, you can magnify that for users who have no ideal latency Take a look at the waterfall on that link. Note there is a cascade in the middle with loading the dashboard and other plugins and localisation files it looks like - that seems new (ish). Note this network timeline from Tyler: [https://i.imgur.com/679C44p.png] - fon'ts are taking 4 seconds to load (70kb each) ??? Scope: * Mostly investigation. Result may be that we need "sane" code splitting and then minification, tree shaking etc(things I know [~kzantow] wants to take a look at) but may be lower hanging fruit in short term so it doesn't appear so bad. * Find out why fonts take 4 seconds to load each [https://i.imgur.com/679C44p.png] |
New:
There are increasing reports that initial loads are worse and worse (looking at master, and 1.3). [~rtyler] reported that loading 2 fonts is taking 4 seconds (each, in parallel, even though they are only 70KB each). They must be some amazing fonts. Scope: * Find out why fonts take 4 seconds to load each [https://i.imgur.com/679C44p.png] * Mostly investigation. Result may be that we need "sane" code splitting and then minification, tree shaking etc(things I know [~kzantow] wants to take a look at) but may be lower hanging fruit in short term so it doesn't appear so bad. A tool like [https://gtmetrix.com/reports/ci.blueocean.io/FI3cg80T] shows cold load analysis. The time shown is more ideal for low latency connection, in reality can be up to a minute for people on modest connections. So anytime there is a delay in the waterfall, you can magnify that for users who have no ideal latency Take a look at the waterfall on that link. Note there is a cascade in the middle with loading the dashboard and other plugins and localisation files it looks like - that seems new (ish). Note this network timeline from Tyler: [https://i.imgur.com/679C44p.png] - fon'ts are taking 4 seconds to load (70kb each) ??? |
| Rank | New: Ranked higher |