Generate reports in app with code: CPU cpuFile, err := os.Create("/tmp/cpuProfile.out") if err != nil { fmt.Println(err) return } pprof.StartCPUProfile(cpuFile) defer pprof.StopCPUProfile() // CODE HERE runtime.GC() Memory memory, err := os.Create("/tmp/memoryProfile.out") if err != nil { fmt.Println(err) return } defer memory.Close() // CODE HERE err = pprof.WriteHeapProfile(memory) if err != nil { fmt.Println(err) return } View reports with go tool pprof

# 1.Without package main import "fmt" var counter int = 0 func main() { ch := make(chan bool) for i := 1; i < 5; i++{ go work(i, ch) } for i := 1; i < 5; i++{ <-ch } fmt.Println("The End") } func work (number int, ch chan bool){ counter = 0 for k := 1; k <= 5; k++{ counter++ fmt.Println("Goroutine", number, "-", counter) } ch <- true } Output Goroutine 3 - 1 Goroutine 3 - 2 Goroutine 3 - 3 Goroutine 3 - 4 Goroutine 3 - 5 Goroutine 2 - 1 Goroutine 2 - 6 Goroutine 2 - 7 Goroutine 2 - 8 Goroutine 2 - 9 Goroutine 1 - 1 Goroutine 1 - 10 Goroutine 1 - 11 Goroutine 1 - 12 Goroutine 1 - 13 Goroutine 4 - 1 Goroutine 4 - 14 Goroutine 4 - 15 Goroutine 4 - 16 Goroutine 4 - 17 The End # 2. With package main import ( "fmt" "sync" ) var counter int = 0 func main() { ch := make(chan bool) var mutex sync.Mutex for i := 1; i < 5; i++{ go work(i, ch, &mutex) } for i := 1; i < 5; i++{ <-ch } fmt.Println("The End") } func work (number int, ch chan bool, mutex *sync.Mutex){ mutex.Lock() counter = 0 for k := 1; k <= 5; k++{ counter++ fmt.Println("Goroutine", number, "-", counter) } mutex.Unlock() ch <- true } Output Goroutine 1 - 1 Goroutine 1 - 2 Goroutine 1 - 3 Goroutine 1 - 4 Goroutine 1 - 5 Goroutine 4 - 1 Goroutine 4 - 2 Goroutine 4 - 3 Goroutine 4 - 4 Goroutine 4 - 5 Goroutine 3 - 1 Goroutine 3 - 2 Goroutine 3 - 3 Goroutine 3 - 4 Goroutine 3 - 5 Goroutine 2 - 1 Goroutine 2 - 2 Goroutine 2 - 3 Goroutine 2 - 4 Goroutine 2 - 5 The End

Find: (:update\s.*)(_new) Replace: $1 Given text: foo:update example_new foo:update word_new foo:update also_new Output: foo:update example foo:update word foo:update also

SQL-Insert-Statements-Bulk-100per.sql.groovy SEP = ", " QUOTE = "\'" NEWLINE = System.getProperty("line.separator") KEYWORDS_LOWERCASE = com.intellij.database.util.DbSqlUtil.areKeywordsLowerCase(PROJECT) KW_INSERT_INTO = KEYWORDS_LOWERCASE ? "insert into " : "INSERT INTO " KW_VALUES = KEYWORDS_LOWERCASE ? "values" : "VALUES" KW_NULL = KEYWORDS_LOWERCASE ? "null" : "NULL" OUT.append(KW_INSERT_INTO) if (TABLE == null) OUT.append("post") else OUT.append(TABLE.getParent().getName()).append(".").append(TABLE.getName()) OUT.append(" (") COLUMNS.eachWithIndex { column, idx -> OUT.append(column.name()).append(idx != COLUMNS.size() - 1 ? SEP : "") } OUT.append(")").append(NEWLINE).append(KW_VALUES) def record(columns, dataRow, close) { OUT.append(NEWLINE).append("(") columns.eachWithIndex { column, idx -> def value = dataRow.value(column) def skipQuote = value.toString().isNumber() || value == null def stringValue = value != null ? FORMATTER.format(dataRow, column) : KW_NULL if (DIALECT.getDbms().isMysql()) stringValue = stringValue.replace("\\", "\\\\") OUT.append(skipQuote ? "": QUOTE).append(stringValue.replace(QUOTE, QUOTE + QUOTE)) .append(skipQuote ? "": QUOTE).append(idx != columns.size() - 1 ? SEP : "") } deliMeter = dataRow.last() || close ? ";" : "," OUT.append(")").append(deliMeter) } count = 0 def createInsert(columns, dataRow) { count++ if (count%100 == 0 && !dataRow.last()) { record(columns, dataRow, true) OUT.append(NEWLINE).append(KW_INSERT_INTO) if (TABLE == null) OUT.append("post") else OUT.append(TABLE.getParent().getName()).append(".").append(TABLE.getName()) OUT.append(" (") COLUMNS.eachWithIndex { column, idx -> OUT.append(column.name()).append(idx != COLUMNS.size() - 1 ? SEP : "") } OUT.append(")").append(NEWLINE).append(KW_VALUES) return } record(columns, dataRow, false) } ROWS.each { row -> createInsert(COLUMNS, row) }

Apps PHS 2019.1.4 DGP 2019.2.6 custom JDK DGP 2019.3 + plugin Choose Runtime + 8u212-linux-x64-b1596.1 latte launcher subl ~/.config/kwinrc [ModifierOnlyShortcuts] Meta=org.kde.lattedock,/Latte,org.kde.LatteDock,activateLauncherMenu OR kwriteconfig5 --file ~/.config/kwinrc --group ModifierOnlyShortcuts --key Meta "org.kde.lattedock,/Latte,org.kde.LatteDock,activateLauncherMenu" qdbus org.kde.KWin /KWin reconfigure

Fix slowing CPU sudo nano /etc/X11/xorg.conf.d/20-intel.conf Section "Device" Identifier "Intel Graphics" Driver "Intel" Option "AccelMethod" "sna" Option "TearFree" "true" Option "TripleBuffer" "true" Option "MigrationHeuristic" "greedy" Option "Tiling" "true" Option "Pageflip" "true" Option "ExaNoComposite" "false" Option "Tiling" "true" Option "Pageflip" "true" Option "VSync" "false" EndSection

git reflog --all | grep something git fsck --full --no-reflogs --unreachable --lost-found | grep commit | cut -d\ -f3 | xargs -n 1 git log -n 1 --pretty=oneline > .git/lost-found.txt

select column ^.{12}\K(.){10}

Frontend build sudo apt-get install nodejs sudo apt-get install npm sudo npm install gulp-cli -g npm install gulp all-build Switch language sudo apt-get install gnome-tweaks gnome-tweaks Keyboard & Mouse tab Additional Layout Options button Switching to another layout Ctrl + Alt + Left/Right disable ubuntu gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-left "['']" gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-right "['']" Linux + Nvidia sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt update ubuntu-drivers devices sudo apt install <recommended> Datagrip Data source properties -> Options tab -> Object filter: collation:-.*

SELECT * FROM INFORMATION_SCHEMA.PROCESSLIST WHERE HOST LIKE '%192.168.0.0%';