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armbian-next: introduce POOR_MAN_PROFILER=yes (under ANSI_COLOR=none)

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- turns out EPOCHREALTIME can be comma separated, and have multiple leading zeroes
This commit is contained in:
Ricardo Pardini 2023-01-15 05:01:49 +01:00
parent 2a68cc6e9e
commit 43b4f45018
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GPG Key ID: 3D38CA12A66C5D02
1 changed files with 39 additions and 1 deletions
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40
lib/functions/logging/display-alert.sh
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@ -2,7 +2,11 @@ function display_alert() {
# If asked, avoid any fancy ANSI escapes completely. For python-driven log collection. Formatting could be improved.
# If used, also does not write to logfile even if it exists.
if [[ "${ANSI_COLOR}" == "none" ]]; then
echo -e "${@}" | sed 's/\x1b\[[0-9;]*m//g' >&2
declare extra_profiler=""
if [[ "${POOR_MAN_PROFILER}" == "yes" ]]; then
poor_man_profiler
fi
echo -e "${extra_profiler}${*}" | sed 's/\x1b\[[0-9;]*m//g' >&2
return 0
fi
@ -233,3 +237,37 @@ function logging_echo_prefix_for_pv() {
## Bright Cyan echo -e "\033[96mBright Cyan\033[0m"
## White echo -e "\033[37mWhite\033[0m"
## Bright White echo -e "\033[97mBright White\033[0m"
# this is slow, unsafe, incorrect, but does help a lot to find slow spots.
# this sets the outer scope variable "extra_profiler"
function poor_man_profiler() {
# replace commas with dots in EPOCHREALTIME
declare seconds_dot_micros="${EPOCHREALTIME//,/.}"
# Parse seconds and nanos from seconds_dot_micros, separated by "dot"
declare -i seconds="${seconds_dot_micros%.*}"
declare str_nanos="${seconds_dot_micros#*.}"
# remove all leading zeros, the worst way possible
str_nanos="${str_nanos##0}"
str_nanos="${str_nanos##0}"
str_nanos="${str_nanos##0}"
str_nanos="${str_nanos##0}"
declare -i nanos="${str_nanos}"
if [[ -z "${starting_seconds}" ]]; then # get an absolute starting point, once.
declare -g -r starting_seconds="${seconds}"
fi
declare -i seconds=$((seconds - starting_seconds)) # relative secs
# If we have a previous_seconds and previous_nanos, calculate the difference
if [[ -n "${previous_seconds}" && -n "${previous_nanos}" ]]; then
declare -i diff_seconds=$((seconds - previous_seconds))
declare -i diff_nanos=$((nanos - previous_nanos))
if [[ $diff_seconds -gt 0 ]]; then
diff_nanos=$(((diff_seconds * 1000 * 1000) + diff_nanos))
fi
extra_profiler="+(${diff_nanos} ns) " # sets the outer scope variable
fi
declare -g -i previous_seconds="${seconds}"
declare -g -i previous_nanos="${nanos}"
}