From 2cca1e9975c390099e0ec48a9fd6404b2c83a69d Mon Sep 17 00:00:00 2001
From: Alexey Avramov <hakavlad@gmail.com>
Date: Thu, 26 Jul 2018 00:00:20 +0900
Subject: [PATCH] fix logging: flush stdout

---
 README.md                  |  2 +-
 default_values_backup.conf | 12 ++++++------
 nohang                     |  9 ++++-----
 nohang.1                   |  2 +-
 nohang.conf                | 14 +++++++-------
 nohang.service             |  4 ----
 6 files changed, 19 insertions(+), 24 deletions(-)

diff --git a/README.md b/README.md
index bd327c6..dd48951 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ Also look at [Why are low memory conditions handled so badly?](https://www.reddi
 
 ## Memory and CPU usage
 
-- VmRSS is 10 — 14 MiB depending on the settings
+- VmRSS is 10 — 13 MiB depending on the settings (about 10 MiB by default)
 - CPU usage depends on the level of available memory (the frequency of memory status checks increases as the amount of available memory decreases) and monitoring intensity (can be changed by user via config)
 
 ## Status
diff --git a/default_values_backup.conf b/default_values_backup.conf
index c5dc0f3..ec50ef8 100644
--- a/default_values_backup.conf
+++ b/default_values_backup.conf
@@ -5,10 +5,10 @@
 
     1. Memory levels to respond to as an OOM threat
 
-mem_min_sigterm = 9 %
-mem_min_sigkill = 6 %
-swap_min_sigterm = 9 %
-swap_min_sigkill = 6 %
+mem_min_sigterm = 10 %
+mem_min_sigkill = 5 %
+swap_min_sigterm = 10 %
+swap_min_sigkill = 5 %
 zram_max_sigterm = 50 %
 zram_max_sigkill = 55 %
 
@@ -29,7 +29,7 @@ min_badness = 10
 min_delay_after_sigterm = 0.5
 min_delay_after_sigkill = 3
 decrease_oom_score_adj = False
-oom_score_adj_max = 20
+oom_score_adj_max = 30
 
 #####################################################################
 
@@ -48,7 +48,7 @@ avoid_factor = 3
        SIGTERM signal.
 
 execute_the_command = False
-** processname :: some command
+$ETC proc_name /// some command
 
 #####################################################################
 
diff --git a/nohang b/nohang
index ea0f840..a3d90a0 100755
--- a/nohang
+++ b/nohang
@@ -6,7 +6,7 @@ import os
 from operator import itemgetter
 from time import sleep, time
 from argparse import ArgumentParser
-# from subprocess import Popen
+from sys import stdout
 
 sig_dict = {9: 'SIGKILL', 15: 'SIGTERM'}
 
@@ -457,8 +457,7 @@ else:
         exit()
 
 
-print('The path to the config file to be used:')
-print(config)
+print('The path to the config file to be used:', config)
 
 ##########################################################################
 
@@ -1252,7 +1251,7 @@ warn_time_now = 0
 warn_time_delta = 1000
 warn_timer = 0
 
-print('\nStart monitoring...')
+print('Start monitoring...')
 
 ##########################################################################
 
@@ -1431,7 +1430,7 @@ while True:
 
     # SLEEP BETWEEN MEM CHECKS
     else:
-
+        stdout.flush()
         sleep_after_check_mem()
 
 
diff --git a/nohang.1 b/nohang.1
index c6ecf39..0a83360 100644
--- a/nohang.1
+++ b/nohang.1
@@ -7,7 +7,7 @@ nohang \- no hang daemon
 .RB [ OPTION ]...
 
 .SH DESCRIPTION
-Nohang is a highly configurable daemon for Linux which is able to correctly prevent out of memory conditions. See https://github.com/hakavlad/nohang
+Nohang is a highly configurable daemon for Linux which is able to correctly prevent out of memory (OOM) and keep system responsiveness in low memory conditions. See https://github.com/hakavlad/nohang
 
 .SH OPTIONS
 .TP
diff --git a/nohang.conf b/nohang.conf
index f624a3d..c8cd151 100644
--- a/nohang.conf
+++ b/nohang.conf
@@ -34,13 +34,13 @@
 
     MemAvailable levels.
 
-mem_min_sigterm = 9 %
-mem_min_sigkill = 6 %
+mem_min_sigterm = 10 %
+mem_min_sigkill = 5 %
 
     SwapFree levels.
 
-swap_min_sigterm = 9 %
-swap_min_sigkill = 6 %
+swap_min_sigterm = 10 %
+swap_min_sigkill = 5 %
 
     Specifying the total share of zram in memory, if exceeded the
     corresponding signals are sent. As the share of zram in memory
@@ -114,7 +114,7 @@ decrease_oom_score_adj = False
 
     Valid values are integers from the range [0; 1000].
 
-oom_score_adj_max = 20
+oom_score_adj_max = 30
 
 #####################################################################
 
@@ -275,7 +275,7 @@ oom_score_adj = -100
     Read `man ionice` to understand the following parameters.
     Setting the True value requires the root privileges.
 
-realtime_ionice = True
+realtime_ionice = False
 
     'For realtime and best-effort, 0-7 are valid data
     (priority levels), and 0 represents the highest priority level.'
@@ -291,7 +291,7 @@ realtime_ionice_classdata = 5
     Display the configuration when the program starts.
     Valid values are True and False.
 
-print_config = True
+print_config = False
 
     Print memory check results or not print.
     Valid values are True and False.
diff --git a/nohang.service b/nohang.service
index 9520164..523611b 100644
--- a/nohang.service
+++ b/nohang.service
@@ -5,10 +5,6 @@ After=sysinit.target
 Documentation=man:nohang(1) https://github.com/hakavlad/nohang
 
 [Service]
-Type=simple
-Restart=always
-StandardOutput=syslog
-StandardError=syslog
 ExecStart=/usr/local/bin/nohang
 
 [Install]