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upped buffer sizes and switched to 2xlarge to increase speed

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This commit is contained in:
Joe Lothan 2026-05-20 12:59:12 -04:00
parent 1df9a234cf
commit 8dce702e8d
5 changed files with 10 additions and 8 deletions
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2
infra/main.tf
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@ -44,7 +44,7 @@ variable "ssh_cidr" {
}
variable "ec2_instance_type" {
default = "c5.xlarge"
default = "c5.2xlarge"
}
variable "ec2_ami" {

2
pipeline/01_cc_index/query.sh
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@ -68,6 +68,8 @@ S3_PATH="s3://commoncrawl/cc-index/table/cc-main/warc/crawl=${CRAWL}/subset=warc
LOCAL_INDEX="$HOME/cc-index"
QUERY="
SET temp_directory = '${HOME}/duckdb_temp';
INSTALL postgres;
LOAD postgres;
ATTACH '${DB_URL}' AS pg (TYPE POSTGRES);

4
pipeline/02_warc_parse/main.go
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@ -106,8 +106,8 @@ func main() {
// [DB fetcher] → hostCh → [N workers] → resultCh → [DB writer]
// Workers do S3 fetch + parsing (I/O-bound). Writer batches DB writes.
hostCh := make(chan Host, cfg.BatchSize)
resultCh := make(chan WorkResult, cfg.Concurrency)
hostCh := make(chan Host, 20000)
resultCh := make(chan WorkResult, 1000)
// Stage 1: DB fetcher — continuously fetches pages into hostCh
go func() {

4
pipeline/03_icon_download/main.go
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@ -48,7 +48,7 @@ func main() {
flag.StringVar(&cfg.DBUrl, "db", "", "Postgres connection string (required)")
flag.StringVar(&cfg.IconsDir, "icons-dir", "icons", "Directory to store downloaded icons")
flag.IntVar(&cfg.BatchSize, "batch-size", 5000, "Rows to claim per batch")
flag.IntVar(&cfg.Concurrency, "concurrency", 2500, "Number of concurrent goroutines")
flag.IntVar(&cfg.Concurrency, "concurrency", 5000, "Number of concurrent goroutines")
flag.IntVar(&cfg.Limit, "limit", 0, "Max icons to process (0 = all)")
flag.DurationVar(&cfg.Timeout, "timeout", 10*time.Second, "HTTP request timeout")
flag.Int64Var(&cfg.MaxSize, "max-size", 512*1024, "Max icon download size in bytes")
@ -116,7 +116,7 @@ func main() {
stats := &Stats{StartedAt: time.Now()}
// Feed icons into a channel so workers never starve waiting for batch claims
iconCh := make(chan IconRow, cfg.BatchSize)
iconCh := make(chan IconRow, 20000)
go func() {
defer close(iconCh)
claimed := 0

6
pipeline/05_bundle_gen/main.go
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@ -45,7 +45,7 @@ func main() {
flag.StringVar(&cfg.IconsDir, "icons-dir", "icons", "Directory with downloaded icons")
flag.StringVar(&cfg.SiteBucket, "site-bucket", "everytab-site", "S3 bucket for the static site")
flag.IntVar(&cfg.EntriesPerBundle, "entries-per-bundle", 120, "Tabs per bundle JSON file")
flag.IntVar(&cfg.Concurrency, "concurrency", 20, "Concurrent icon conversions")
flag.IntVar(&cfg.Concurrency, "concurrency", 40, "Concurrent icon conversions")
flag.IntVar(&cfg.Uploaders, "uploaders", 10, "Concurrent S3 bundle uploads")
flag.BoolVar(&cfg.DryRun, "dry-run", false, "Write bundles to local disk instead of S3")
flag.StringVar(&cfg.OutputDir, "output-dir", "bundles", "Local output dir for dry-run mode")
@ -121,8 +121,8 @@ func main() {
data []byte
}
hostCh := make(chan HostRow, cfg.EntriesPerBundle*10)
entryCh := make(chan BundleEntry, cfg.EntriesPerBundle*10)
hostCh := make(chan HostRow, 6000)
entryCh := make(chan BundleEntry, 6000)
uploadCh := make(chan bundleJob, cfg.Uploaders*2)
// Stage 1: DB fetcher — continuously fetches pages into hostCh