tcwg_bmk-build.sh: Use all history to compute sample variability

Change-Id: I9c7bd0f100f06a520a6111a25dd41564a47f5a67

1 files changed, 15 insertions, 6 deletions

diff --git a/tcwg_bmk-build.sh b/tcwg_bmk-build.sh
index 9b269105..db94f71f 100755
--- a/tcwg_bmk-build.sh
+++ b/tcwg_bmk-build.sh
@@ -446,11 +446,20 @@ compare_results ()
 
     # Extract 5 most recent compare-results-vs-prev-internal.csv files from
     # base-artifacts and compute std deviation out of them
-    local -a history_csvs
-    history_csvs=("results-vs-prev/compare-results-internal.csv"
+    local -a csvs_paths
+    csvs_paths=("results-vs-prev/compare-results-internal.csv"
 		  "$(basename $run_step_artifacts)/compare-results-vs-prev-internal.csv")
-    readarray -t history_csvs \
-	      < <(get_git_history 5 base-artifacts "${history_csvs[@]}")
+
+    local -a history_csvs
+    local csv history_root=""
+    while read csv; do
+       if [ "$history_root" = "" ]; then
+           history_root="$csv"
+           continue
+       fi
+
+       history_csvs+=("$csv")
+    done < <(get_git_history -0 base-artifacts "${csvs_paths[@]}")
 
     local csv tmpf
     local -a compare_results_list=()
@@ -460,7 +469,7 @@ compare_results ()
     # To deal with some differences along base-artifacts recent history
     # - remove 'Failed for column' message from csv file
     # - skip emtpy csv files.
-    for csv in "${history_csvs[@]:1}"; do
+    for csv in "${history_csvs[@]}"; do
 	grep -v 'Failed for column' "$csv" > "$tmpf" || true
 	cp "$tmpf" "$csv"
 	if [ -s "$csv" ]; then
@@ -474,7 +483,7 @@ compare_results ()
         --output $run_step_artifacts/bmk-specific-variability.csv || true
     fi
 
-    rm -rf "${history_csvs[0]}" "$tmpf"
+    rm -rf "$history_root" "$tmpf"
 
     echo "called_from_notify=$called_from_notify"
     local verbose_opt="quiet"