commit 4f4d853e5a672ea469a2532774867305712b418e
from: Stefan Sperling <stsp@stsp.name>
date: Sun Oct 24 09:41:04 2021 UTC

try only 3 delta base candidates instead of 10 to speed up packing

Tests by kn, thomas_adam and myself made on various repositories
indicate that 3 is a good choice. Tyring 10 deltas is much slower
and does not result in significantly smaller pack files.

commit - a9e66726ec8e6d4997a024f572ee53719f7b9cdb
commit + 4f4d853e5a672ea469a2532774867305712b418e
blob - c2fe31df1b52aa2eb9e4b6dfec289f29d5dc4a1b
blob + b5f4f5581bd2c0c257a81264e472be7db4785f53
--- lib/pack_create.c
+++ lib/pack_create.c
@@ -261,7 +261,7 @@ pick_deltas(struct got_pack_meta **meta, int nmeta, in
 	struct got_raw_object *raw = NULL, *base_raw = NULL;
 	struct got_delta_instruction *deltas = NULL, *best_deltas = NULL;
 	int i, j, size, best_size, ndeltas, best_ndeltas;
-	const int max_base_candidates = 10;
+	const int max_base_candidates = 3;
 	int outfd = -1;
 
 	qsort(meta, nmeta, sizeof(struct got_pack_meta *), delta_order_cmp);