mirror of
https://git.sr.ht/~cadence/cloudtube
synced 2024-11-14 04:17:29 +00:00
11x speed up of subscription page generation
My 30 subscriptions now take 25 ms to generate, instead of around 280. Around 120 ms were saved by creating a database index. Around 120 ms were saved by pre-compiling the pug template for video description timestamps. The other changes in this commit produced slight improvements.
This commit is contained in:
parent
0aa0505009
commit
55065e2a9e
@ -16,18 +16,15 @@ module.exports = [
|
|||||||
// trigger a background refresh, needed if they came back from being inactive
|
// trigger a background refresh, needed if they came back from being inactive
|
||||||
refresher.skipWaiting()
|
refresher.skipWaiting()
|
||||||
// get channels
|
// get channels
|
||||||
const subscriptions = user.getSubscriptions()
|
channels = db.prepare(`SELECT Channels.* FROM Channels INNER JOIN Subscriptions ON Channels.ucid = Subscriptions.ucid WHERE token = ? ORDER BY name`).all(user.token)
|
||||||
const template = Array(subscriptions.length).fill("?").join(", ")
|
|
||||||
channels = db.prepare(`SELECT * FROM Channels WHERE ucid IN (${template}) ORDER BY name`).all(subscriptions)
|
|
||||||
// get refreshed status
|
// get refreshed status
|
||||||
refreshed = db.prepare(`SELECT min(refreshed) as min, max(refreshed) as max, count(refreshed) as count FROM Channels WHERE ucid IN (${template})`).get(subscriptions)
|
refreshed = db.prepare(`SELECT min(refreshed) as min, max(refreshed) as max, count(refreshed) as count FROM Channels INNER JOIN Subscriptions ON Channels.ucid = Subscriptions.ucid WHERE token = ?`).get(user.token)
|
||||||
// get watched videos
|
// get watched videos
|
||||||
const watchedVideos = user.getWatchedVideos()
|
const watchedVideos = user.getWatchedVideos()
|
||||||
// get videos
|
// get videos
|
||||||
if (subscriptions.length) {
|
if (channels.length) {
|
||||||
hasSubscriptions = true
|
hasSubscriptions = true
|
||||||
const template = Array(subscriptions.length).fill("?").join(", ")
|
videos = db.prepare(`SELECT Videos.* FROM Videos INNER JOIN Subscriptions ON Videos.authorID = Subscriptions.ucid WHERE token = ? ORDER BY published DESC LIMIT 60`).all(user.token)
|
||||||
videos = db.prepare(`SELECT * FROM Videos WHERE authorId IN (${template}) ORDER BY published DESC LIMIT 60`).all(subscriptions)
|
|
||||||
.map(video => {
|
.map(video => {
|
||||||
video.publishedText = timeToPastText(video.published * 1000)
|
video.publishedText = timeToPastText(video.published * 1000)
|
||||||
video.watched = watchedVideos.includes(video.videoId)
|
video.watched = watchedVideos.includes(video.videoId)
|
||||||
|
@ -58,6 +58,7 @@ function normaliseVideoInfo(video) {
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
const timeDisplayCompiled = pug.compile(`a(href=url data-clickable-timestamp=timeSeconds)= timeDisplay`)
|
||||||
function rewriteVideoDescription(descriptionHtml, id) {
|
function rewriteVideoDescription(descriptionHtml, id) {
|
||||||
// replace timestamps to clickable links and rewrite youtube links to stay on the instance instead of pointing to YouTube
|
// replace timestamps to clickable links and rewrite youtube links to stay on the instance instead of pointing to YouTube
|
||||||
// test cases
|
// test cases
|
||||||
@ -93,7 +94,7 @@ function rewriteVideoDescription(descriptionHtml, id) {
|
|||||||
params.set("t", timeURL)
|
params.set("t", timeURL)
|
||||||
const url = "/watch?" + params
|
const url = "/watch?" + params
|
||||||
|
|
||||||
return pug.render(`a(href=url data-clickable-timestamp=timeSeconds)= timeDisplay`, {url, timeURL, timeDisplay, timeSeconds})
|
return timeDisplayCompiled({url, timeURL, timeDisplay, timeSeconds})
|
||||||
})
|
})
|
||||||
|
|
||||||
return descriptionHtml
|
return descriptionHtml
|
||||||
|
@ -14,7 +14,10 @@ function getToken(req, responseHeaders) {
|
|||||||
return null
|
return null
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
db.prepare("REPLACE INTO SeenTokens (token, seen) VALUES (?, ?)").run([token, Date.now()])
|
db.prepare(
|
||||||
|
"INSERT INTO SeenTokens (token, seen) VALUES (?, ?)"
|
||||||
|
+ " ON CONFLICT (token) DO UPDATE SET seen = excluded.seen"
|
||||||
|
).run([token, Date.now()])
|
||||||
return token
|
return token
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -58,6 +58,11 @@ const deltas = [
|
|||||||
function() {
|
function() {
|
||||||
db.prepare("ALTER TABLE Subscriptions ADD COLUMN channel_missing INTEGER DEFAULT 0")
|
db.prepare("ALTER TABLE Subscriptions ADD COLUMN channel_missing INTEGER DEFAULT 0")
|
||||||
.run()
|
.run()
|
||||||
|
},
|
||||||
|
// 9: add index Videos (authorID)
|
||||||
|
function() {
|
||||||
|
db.prepare("CREATE INDEX Videos_authorID ON Videos (authorID)")
|
||||||
|
.run()
|
||||||
}
|
}
|
||||||
]
|
]
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user