perf: add benchmark script for the "many empty files" scenario

This isn't great code, but it works, which is enough for now.

Sponsored-by: author

1 files changed, 39 insertions, 0 deletions

diff --git a/manyfiles.py b/manyfiles.py
new file mode 100644
index 0000000..a45d3cd
--- /dev/null
+++ b/manyfiles.py
@@ -0,0 +1,39 @@
+#!/usr/bin/python3
+#
+# Create the desired number of empty files in a directory. A thousand files per
+# subdirectory.
+
+import os
+import sys
+
+
+def subdir(dirname, dirno):
+    pathname = os.path.join(dirname, str(dirno))
+    os.mkdir(pathname)
+    return pathname
+
+
+def create(filename):
+    open(filename, "w").close()
+
+
+DIRFILES = 1000
+
+dirname = sys.argv[1]
+n = int(sys.argv[2])
+
+dirno = 0
+subdirpath = subdir(dirname, dirno)
+fileno = 0
+thisdir = 0
+
+while fileno < n:
+    filename = os.path.join(subdirpath, str(thisdir))
+    create(filename)
+
+    fileno += 1
+    thisdir += 1
+    if thisdir >= DIRFILES:
+        dirno += 1
+        subdirpath = subdir(dirname, dirno)
+        thisdir = 0