From 2458e0deefbc069dfaa81091f6fe4a93250d8913 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sun, 10 Oct 2021 13:06:47 +0300
Subject: chore: drop obsolete benchmark.sh

This uses benchmark binaries that no longer exist.

Sponsored-by: author
---
 benchmark.sh | 25 -------------------------
 1 file changed, 25 deletions(-)
 delete mode 100755 benchmark.sh

diff --git a/benchmark.sh b/benchmark.sh
deleted file mode 100755
index cf7491a..0000000
--- a/benchmark.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/bash
-
-set -euo pipefail
-
-chunkdir="$1"
-bin="$2"
-
-cleanup()
-{
-    echo "emptying $chunkdir" 1>&2
-    find "$chunkdir" -mindepth 1 -delete
-}
-
-cleanup
-
-echo "running benchmarks for various sizes"
-for n in 1 10 100 1000 10000 100000 1000000
-do
-    echo "size $n" 1>&2
-    for prog in benchmark-null benchmark-index benchmark-store benchmark-indexedstore
-    do
-	/usr/bin/time --format "$prog $n %e" "$bin/$prog" "$chunkdir" "$n" 2>&1
-	cleanup
-    done
-done | awk '{ printf "%-30s %10s %10s\n", $1, $2, $3 }'
-- 
cgit v1.2.1


From 6a0f418082eb5831ef40964e0798de2e0754a1a6 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sun, 10 Oct 2021 14:09:03 +0300
Subject: chore: drop debug eprintln! calls

They're not useful now. Should probably add logging, but that will
have to wait until we have a good logging story.

Sponsored-by: author
---
 src/index.rs | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/index.rs b/src/index.rs
index 8cbe01e..5d31068 100644
--- a/src/index.rs
+++ b/src/index.rs
@@ -214,7 +214,6 @@ mod sql {
         for meta in iter {
             let meta = meta?;
             if metas.is_empty() {
-                eprintln!("lookup: meta={:?}", meta);
                 metas.push(meta);
             } else {
                 let err = IndexError::DuplicateChunk(id.clone());
@@ -223,7 +222,6 @@ mod sql {
             }
         }
         if metas.is_empty() {
-            eprintln!("lookup: no hits");
             return Err(IndexError::MissingChunk(id.clone()));
         }
         let r = metas[0].clone();
-- 
cgit v1.2.1


From 560b481f8edd11aaa012204e4798b9d549df685e Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sun, 10 Oct 2021 14:09:46 +0300
Subject: perf: add script to run a simplistic benchmark

Sponsored-by: author
---
 bench.sh | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100755 bench.sh

diff --git a/bench.sh b/bench.sh
new file mode 100755
index 0000000..75cd459
--- /dev/null
+++ b/bench.sh
@@ -0,0 +1,53 @@
+#!/bin/bash
+#
+# Run a simple benchmark of an initial backup of a sparse file of a
+# given size. This mainly measures how fast the client can split the
+# live data into chunks and compute checksums for the chunks.
+#
+# Edit the if-statement towards the end to get a flamegraph to see
+# where time is actually spent.
+#
+# This is very simplistic and could do with a lot of improvement. But it's a start.
+
+set -euo pipefail
+
+SIZE=1G
+
+TMP="$(mktemp -d)"
+trap 'rm -rf "$TMP"' EXIT
+
+chunks="$TMP/chunks"
+live="$TMP/live"
+
+mkdir "$chunks"
+mkdir "$live"
+truncate --size "$SIZE" "$live/data.dat"
+
+cat <<EOF >"$TMP/server.yaml"
+address: localhost:8888
+chunks: $chunks
+tls_key: test.key
+tls_cert: test.pem
+EOF
+
+cat <<EOF >"$TMP/client.yaml"
+server_url: https://localhost:8888
+verify_tls_cert: false
+roots:
+  - $live
+log: $TMP/client.log
+EOF
+
+cargo build -q --release --all-targets
+
+OBNAM_SERVER_LOG=error cargo run -q --release --bin obnam-server -- "$TMP/server.yaml" >/dev/null &
+pid="$!"
+
+cargo run -q --release --bin obnam -- --config "$TMP/client.yaml" init --insecure-passphrase=hunter2
+if true; then
+	/usr/bin/time cargo run -q --release --bin obnam -- --config "$TMP/client.yaml" backup >/dev/null
+else
+	cargo flamegraph --bin obnam -o obnam.svg -- --config "$TMP/client.yaml" backup >/dev/null
+fi
+
+kill -9 "$pid"
-- 
cgit v1.2.1