# HG changeset patch
# User Matti Hamalainen <ccr@tnsp.org>
# Date 1560761433 -10800
# Node ID 6878aad714ce9e0d014ede834bdb8f58b4730851
# Parent  4f52b7f5fe51cd52819fb96d1835061c919cb503
Add a slowness warning (the threshold value will probably need adjusting.)

diff -r 4f52b7f5fe51 -r 6878aad714ce tools/fanalyze.c
--- a/tools/fanalyze.c	Mon Jun 17 11:50:12 2019 +0300
+++ b/tools/fanalyze.c	Mon Jun 17 11:50:33 2019 +0300
@@ -931,6 +931,13 @@
         dmPrint(0, "Attempting to find matching sequences of %" DM_PRIu_SIZE_T" bytes or more\n",
             optMinMatchLen);
 
+        if (totalSize > 32*1024)
+        {
+            dmPrint(0,
+            "WARNING! Total data size is large, and the matching \"algorithm\"\n"
+            "used is horribly inefficient. This will be quite slow ...\n");
+        }
+
         for (int nfile1 = 0; nfile1 < nsrcFiles; nfile1++)
         {
             DMSourceFile *file1 = &srcFiles[nfile1];