add case studies

.gitignore

@@ -1,2 +1,3 @@
 .vscode/
 /target
+/case-studies/workdir

Justfile

@@ -62,3 +62,4 @@ preview-man: doc
 
 clean:
   cargo clean || :
+  rm -rf case-studies/workdir

case-studies/case-study-blake3.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+export STUDY="set"
+export PICCA="blake3"
+export BIN="b3sum"
+pushd "$(dirname $0)" > /dev/null
+mkdir -p workdir/files
+
+for i in $(seq 1 150); do
+  dd if=/dev/urandom of=workdir/files/test$i bs=4M count=150
+done
+
+./post-case-study.sh

case-studies/case-study-sha256.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+export STUDY="set"
+export PICCA="sha256"
+export BIN="sha256sum"
+pushd "$(dirname $0)" > /dev/null
+mkdir -p workdir/files
+
+for i in $(seq 1 150); do
+  dd if=/dev/urandom of=workdir/files/test$i bs=4M count=150
+done
+
+./post-case-study.sh

case-studies/post-case-study.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+# DO NOT RUN THIS FILE DIRECTLY!
+# RUN case-study-<ALGORITHM>.sh INSTEAD
+
+if [ -z $STUDY ]; then
+  echo "$0: this is a helper script - not intended to be ran directly"
+  exit 1
+fi
+
+echo "sleeping for 2 minutes for I/O to catch up"
+sleep 120
+time (find workdir/ -name 'test*' | xargs picca -a $PICCA) | tee workdir/results-picca-$PICCA.txt
+time (find workdir/ -name 'test*' | xargs $BIN) | tee workdir/results-coreutil-$PICCA.txt