From 3b59bedbbb6e4aeaa584d14157aa92255b3a7031 Mon Sep 17 00:00:00 2001
From: Thomas Voss <mail@thomasvoss.com>
Date: Tue, 27 Aug 2024 00:25:00 +0200
Subject: Add AVX-2

---
 c/simd-isascii/README | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 c/simd-isascii/README

(limited to 'c/simd-isascii/README')

diff --git a/c/simd-isascii/README b/c/simd-isascii/README
new file mode 100644
index 0000000..22ba633
--- /dev/null
+++ b/c/simd-isascii/README
@@ -0,0 +1,8 @@
+You can generate test data via the following command, and then just
+use ‘echo foo >>out’ to write some non-ASCII into the stream.
+
+	$ tr -cd ' -~' </dev/urandom | head -c BYTES >out
+
+Findings:
+1.  GCC Doesn’t auto-vectorize the generic loop
+2.  The AVX-2 version out-performs AVX-512 by a huge margin
-- 
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