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Add Web Vitals performance tracking (LCP, INP, CLS, FCP, TTFB)

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End-to-end performance metrics tracking: dedicated database table with
percentile aggregation, tracker collection behind data-perf attribute,
/api/send handling, report API endpoints, and Performance dashboard page
with threshold-based metric cards, time-series chart, and per-page breakdown.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Mike Cao 2026-02-08 19:25:20 -08:00
parent 8cd3c03702
commit ce9e2416fb
24 changed files with 1028 additions and 8 deletions
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72
db/clickhouse/migrations/09_add_performance.sql Normal file
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-- Create Performance
CREATE TABLE umami.website_performance
(
website_id UUID,
session_id UUID,
visit_id UUID,
url_path String,
lcp Nullable(Decimal(10, 1)),
inp Nullable(Decimal(10, 1)),
cls Nullable(Decimal(10, 4)),
fcp Nullable(Decimal(10, 1)),
ttfb Nullable(Decimal(10, 1)),
created_at DateTime('UTC')
)
ENGINE = MergeTree
PARTITION BY toYYYYMM(created_at)
ORDER BY (website_id, toStartOfHour(created_at), session_id)
SETTINGS index_granularity = 8192;
-- Performance hourly aggregation
CREATE TABLE umami.website_performance_hourly
(
website_id UUID,
url_path String,
lcp_p50 AggregateFunction(quantile(0.5), Nullable(Decimal(10, 1))),
lcp_p75 AggregateFunction(quantile(0.75), Nullable(Decimal(10, 1))),
lcp_p95 AggregateFunction(quantile(0.95), Nullable(Decimal(10, 1))),
inp_p50 AggregateFunction(quantile(0.5), Nullable(Decimal(10, 1))),
inp_p75 AggregateFunction(quantile(0.75), Nullable(Decimal(10, 1))),
inp_p95 AggregateFunction(quantile(0.95), Nullable(Decimal(10, 1))),
cls_p50 AggregateFunction(quantile(0.5), Nullable(Decimal(10, 4))),
cls_p75 AggregateFunction(quantile(0.75), Nullable(Decimal(10, 4))),
cls_p95 AggregateFunction(quantile(0.95), Nullable(Decimal(10, 4))),
fcp_p50 AggregateFunction(quantile(0.5), Nullable(Decimal(10, 1))),
fcp_p75 AggregateFunction(quantile(0.75), Nullable(Decimal(10, 1))),
fcp_p95 AggregateFunction(quantile(0.95), Nullable(Decimal(10, 1))),
ttfb_p50 AggregateFunction(quantile(0.5), Nullable(Decimal(10, 1))),
ttfb_p75 AggregateFunction(quantile(0.75), Nullable(Decimal(10, 1))),
ttfb_p95 AggregateFunction(quantile(0.95), Nullable(Decimal(10, 1))),
sample_count SimpleAggregateFunction(sum, UInt64),
created_at DateTime('UTC')
)
ENGINE = AggregatingMergeTree
PARTITION BY toYYYYMM(created_at)
ORDER BY (website_id, toStartOfHour(created_at), url_path)
SETTINGS index_granularity = 8192;
CREATE MATERIALIZED VIEW umami.website_performance_hourly_mv
TO umami.website_performance_hourly
AS
SELECT
website_id,
url_path,
quantileState(0.5)(lcp) as lcp_p50,
quantileState(0.75)(lcp) as lcp_p75,
quantileState(0.95)(lcp) as lcp_p95,
quantileState(0.5)(inp) as inp_p50,
quantileState(0.75)(inp) as inp_p75,
quantileState(0.95)(inp) as inp_p95,
quantileState(0.5)(cls) as cls_p50,
quantileState(0.75)(cls) as cls_p75,
quantileState(0.95)(cls) as cls_p95,
quantileState(0.5)(fcp) as fcp_p50,
quantileState(0.75)(fcp) as fcp_p75,
quantileState(0.95)(fcp) as fcp_p95,
quantileState(0.5)(ttfb) as ttfb_p50,
quantileState(0.75)(ttfb) as ttfb_p75,
quantileState(0.95)(ttfb) as ttfb_p95,
count() as sample_count,
toStartOfHour(created_at) as created_at
FROM umami.website_performance
GROUP BY website_id, url_path, toStartOfHour(created_at);