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(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>}) ] do_fork: T ) (command.ControlFlow keyword:<Id.ControlFlow_Exit exit>) ] redirects: [] right: <Id.Lit_RBrace '}'> ) ) (command.ShFunction keyword: <Id.KW_Function function> name_tok: <warn> name: warn body: (BraceGroup left: <Id.Lit_LBrace '{'> children: [ (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.Pipeline negated: <Id.KW_Bang '!'> children: [ (command.Simple blame_tok: <eval> more_env: [] words: [{<eval>} {(DQ ($ Id.VSub_At '@'))}] redirects: [] do_fork: T ) ] ops: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.Simple blame_tok: <echo> more_env: [] words: [ {<echo>} { (DQ <'WARNING: command failed '> (word_part.EscapedLiteral token: <Id.Lit_EscapedChar '\\"'> ch: '"' ) ($ Id.VSub_At '@') (word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\"'> ch:'"') ) } ] redirects: [(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})] do_fork: T ) ] spids: [237 248] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) ] redirects: [] right: <Id.Lit_RBrace '}'> ) ) (command.ShFunction keyword: <Id.KW_Function function> name_tok: <end> name: end body: (BraceGroup left: <Id.Lit_LBrace '{'> children: [ (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>}] redirects: [(Redir op:<Id.Redir_Great '2>'> loc:(redir_loc.Fd fd:2) arg:{<'/dev/null'>})] do_fork: T ) (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>} {(DQ <'Ending tracing...'>)}] redirects: [(Redir op:<Id.Redir_Great '2>'> loc:(redir_loc.Fd fd:2) arg:{<'/dev/null'>})] do_fork: T ) (command.Simple blame_tok: <cd> more_env: [] words: [{<cd>} {($ Id.VSub_DollarName tracing)}] redirects: [] do_fork: T ) (command.Simple blame_tok: <warn> more_env: [] words: [ {<warn>} {(DQ <'echo 0 > events/block/'> ($ Id.VSub_DollarName b_start) <'/enable'>)} ] redirects: [] do_fork: T ) (command.Simple blame_tok: <warn> more_env: [] words: [{<warn>} {(DQ <'echo 0 > events/block/block_rq_complete/enable'>)}] redirects: [] do_fork: T ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen left: <Id.Op_DLeftParen _> child: (arith_expr.Binary op_id: Id.Arith_DPipe left: ($ Id.Lit_ArithVarLike opt_device) right: ($ Id.Lit_ArithVarLike opt_iotype) ) right: <Id.Op_DRightParen _> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.Simple blame_tok: <warn> more_env: [] words: [ {<warn>} {(DQ <'echo 0 > events/block/'> ($ Id.VSub_DollarName b_start) <'/filter'>)} ] redirects: [] do_fork: T ) (command.Simple blame_tok: <warn> more_env: [] words: [{<warn>} {(DQ <'echo 0 > events/block/block_rq_complete/filter'>)}] redirects: [] do_fork: T ) ] spids: [317 331] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.Simple blame_tok: <warn> more_env: [] words: [{<warn>} {(DQ <'echo > trace'>)}] redirects: [] do_fork: T ) (command.AndOr children: [ (command.DParen left: <Id.Op_DLeftParen _> child: ($ Id.Lit_ArithVarLike wroteflock) right: <Id.Op_DRightParen _> redirects: [] ) (command.Simple blame_tok: <warn> more_env: [] words: [{<warn>} {(DQ <'rm '> ($ Id.VSub_DollarName flock))}] redirects: [] do_fork: T ) ] ops: [<Id.Op_DAmp _>] ) ] redirects: [] right: <Id.Lit_RBrace '}'> ) ) (command.ShFunction keyword: <Id.KW_Function function> name_tok: <die> name: die body: (BraceGroup left: <Id.Lit_LBrace '{'> children: [ (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>} {(DQ ($ Id.VSub_At '@'))}] redirects: [(Redir op:<Id.Redir_GreatAnd '>&'> loc:(redir_loc.Fd fd:1) arg:{<2>})] do_fork: T ) (command.ControlFlow keyword:<Id.ControlFlow_Exit exit> arg_word:{<1>}) ] redirects: [] right: <Id.Lit_RBrace '}'> ) ) (command.ShFunction keyword: <Id.KW_Function function> name_tok: <edie> name: edie body: (BraceGroup 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(AssignPair left: <Id.Lit_VarLike 'opt_timestamp='> lhs: (sh_lhs_expr.Name left: <Id.Lit_VarLike 'opt_timestamp='> name: opt_timestamp ) op: assign_op.Equal rhs: {<1>} ) ] redirects: [] ) ] right: <Id.Op_DSemi _> ) (CaseArm left: <h> pattern: (pat.Words words:[{<h>} {<Id.Lit_QMark '?'>}]) middle: <Id.Right_CasePat _> action: [ (command.Simple blame_tok: <usage> more_env: [] words: [{<usage>}] redirects: [] do_fork: T ) ] right: <Id.Op_DSemi _> ) ] arms_end: <Id.KW_Esac esac> redirects: [] ) ] right: <Id.KW_Done done> ) redirects: [] ) (command.Simple blame_tok: <shift> more_env: [] words: [ {<shift>} { (word_part.ArithSub left: <Id.Left_DollarDParen '$(('> anode: (arith_expr.Binary op_id: Id.Arith_Minus left: {($ Id.VSub_DollarName OPTIND)} right: {<Id.Lit_Digits 1>} ) right: <Id.Right_DollarDParen _> ) } ] redirects: [] do_fork: T ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen left: <Id.Op_DLeftParen _> child: {($ Id.VSub_Pound '#')} right: <Id.Op_DRightParen _> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.ShAssignment left: <Id.Lit_VarLike 'opt_interval='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'opt_interval='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'opt_interval='> name:opt_interval) op: assign_op.Equal rhs: {<1>} ) ] redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'interval='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'interval='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'interval='> name:interval) op: assign_op.Equal rhs: {($ Id.VSub_Number 1)} ) ] redirects: [] ) (command.Simple blame_tok: <shift> more_env: [] words: [{<shift>}] redirects: [] do_fork: T ) ] spids: [539 549] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen left: <Id.Op_DLeftParen _> child: {($ Id.VSub_Pound '#')} right: <Id.Op_DRightParen _> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.ShAssignment left: <Id.Lit_VarLike 'opt_count='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'opt_count='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'opt_count='> name:opt_count) op: assign_op.Equal rhs: {<1>} ) ] redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'count='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'count='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'count='> name:count) op: assign_op.Equal rhs: {($ Id.VSub_Number 1)} ) ] redirects: [] ) ] spids: [564 574] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen left: <Id.Op_DLeftParen _> child: ($ Id.Lit_ArithVarLike opt_device) right: <Id.Op_DRightParen _> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.ShAssignment left: <Id.Lit_VarLike 'major='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'major='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'major='> name:major) op: assign_op.Equal rhs: { (BracedVarSub left: <Id.Left_DollarBrace '${'> token: <Id.VSub_Name device> var_name: device suffix_op: (suffix_op.Unary op: <Id.VOp1_Percent '%'> arg_word: {<','> <Id.Lit_Other '*'>} ) right: <Id.Right_DollarBrace '}'> ) } ) ] redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'minor='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'minor='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'minor='> name:minor) op: assign_op.Equal rhs: { (BracedVarSub left: <Id.Left_DollarBrace '${'> token: <Id.VSub_Name device> var_name: device suffix_op: (suffix_op.Unary op: <Id.VOp1_Pound '#'> arg_word: {<Id.Lit_Other '*'> <','>} ) right: <Id.Right_DollarBrace '}'> ) } ) ] redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'dev='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'dev='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'dev='> name:dev) op: assign_op.Equal rhs: { (word_part.ArithSub left: <Id.Left_DollarDParen '$(('> anode: (arith_expr.Binary op_id: Id.Arith_Plus left: (arith_expr.Binary op_id: Id.Arith_DLess left: ($ Id.Lit_ArithVarLike major) right: {<Id.Lit_Digits 20>} ) right: ($ Id.Lit_ArithVarLike minor) ) right: <Id.Right_DollarDParen _> ) } ) ] redirects: [] ) ] spids: [586 596] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen left: <Id.Op_DLeftParen _> child: ($ Id.Lit_ArithVarLike opt_queue) right: <Id.Op_DRightParen _> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.ShAssignment left: <Id.Lit_VarLike 'b_start='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'b_start='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'b_start='> name:b_start) op: assign_op.Equal rhs: {<block_rq_insert>} ) ] redirects: [] ) ] spids: [637 647] ) ] else_kw: <Id.KW_Else else> else_action: [ (command.ShAssignment left: <Id.Lit_VarLike 'b_start='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'b_start='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'b_start='> name:b_start) op: assign_op.Equal rhs: {<block_rq_issue>} ) ] redirects: [] ) ] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.AndOr children: [ (command.DBracket left: <Id.KW_DLeftBracket '[['> expr: (bool_expr.Unary op_id:Id.BoolUnary_x child:{<'/usr/bin/mawk'>}) right: <Id.Lit_DRightBracket ']]'> redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'awk='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'awk='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'awk='> name:awk) op: assign_op.Equal rhs: {(SQ <'mawk -W interactive'>)} ) ] redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'awk='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'awk='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'awk='> name:awk) op: assign_op.Equal rhs: {<awk>} ) ] redirects: [] ) ] ops: [<Id.Op_DAmp _> <Id.Op_DPipe _>] ) (command.AndOr children: [ (command.Simple blame_tok: <cd> more_env: [] words: [{<cd>} {($ Id.VSub_DollarName tracing)}] redirects: [] do_fork: T ) (command.Simple blame_tok: <die> more_env: [] words: [ {<die>} { (DQ <'ERROR: accessing tracing. Root user? Kernel has FTRACE?\n'> <' debugfs mounted? (mount -t debugfs debugfs /sys/kernel/debug)'> ) } ] redirects: [] do_fork: T ) ] ops: [<Id.Op_DPipe _>] ) (command.AndOr children: [ (command.DBracket left: <Id.KW_DLeftBracket '[['> expr: (bool_expr.Unary op_id:Id.BoolUnary_e child:{($ Id.VSub_DollarName flock)}) right: <Id.Lit_DRightBracket ']]'> redirects: [] ) (command.Simple blame_tok: <die> more_env: [] words: [ {<die>} { (DQ <'ERROR: ftrace may be in use by PID '> (CommandSub left_token: <Id.Left_DollarParen '$('> child: (command.Simple blame_tok: <cat> more_env: [] words: [{<cat>} {($ Id.VSub_DollarName flock)}] redirects: [] do_fork: T ) right: <Id.Eof_RParen _> ) <' '> ($ Id.VSub_DollarName flock) ) } ] redirects: [] do_fork: T ) ] ops: [<Id.Op_DAmp _>] ) (command.AndOr children: [ (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>} {($ Id.VSub_Dollar '$')}] redirects: [ (Redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {($ Id.VSub_DollarName flock)} ) ] do_fork: T ) (command.Simple blame_tok: <die> more_env: [] words: [{<die>} {(DQ <'ERROR: unable to write '> ($ Id.VSub_DollarName flock) <.>)}] redirects: [] do_fork: T ) ] ops: [<Id.Op_DPipe _>] ) (command.ShAssignment left: <Id.Lit_VarLike 'wroteflock='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'wroteflock='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'wroteflock='> name:wroteflock) op: assign_op.Equal rhs: {<1>} ) ] redirects: [] ) (command.Simple blame_tok: <warn> more_env: [] words: [{<warn>} {(DQ <'echo nop > current_tracer'>)}] redirects: [] do_fork: T ) (command.Simple blame_tok: <warn> more_env: [] words: [{<warn>} {(DQ <'echo '> ($ Id.VSub_DollarName bufsize_kb) <' > buffer_size_kb'>)}] redirects: [] do_fork: T ) (command.ShAssignment left: <Id.Lit_VarLike 'filter='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'filter='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'filter='> name:filter) op: assign_op.Equal rhs: (rhs_word__Empty) ) ] redirects: [] ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> 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redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.AndOr children: [ (command.DBracket left: <Id.KW_DLeftBracket '[['> expr: (bool_expr.Binary op_id: Id.BoolBinary_GlobNEqual left: {(DQ ($ Id.VSub_DollarName filter))} right: {(DQ )} ) right: <Id.Lit_DRightBracket ']]'> redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'filter='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'filter='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'filter='> name:filter) op: assign_op.Equal rhs: {(DQ ($ Id.VSub_DollarName filter) <' && '>)} ) ] redirects: [] ) ] ops: [<Id.Op_DAmp _>] ) (command.ShAssignment left: <Id.Lit_VarLike 'filter='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'filter='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'filter='> name:filter) op: assign_op.Equal rhs: {(DQ (${ Id.VSub_Name filter) <'dev == '> ($ Id.VSub_DollarName dev))} ) ] redirects: [] ) ] spids: [793 803] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) 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{(DQ ($ Id.VSub_DollarName filter))}] redirects: [ (Redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<'events/block/block_rq_complete/filter'>} ) ] do_fork: T ) ] ops: [] ) ] ops: [<Id.Op_DPipe _>] ) ] ) then_kw: <Id.KW_Then then> action: [ (command.Simple blame_tok: <edie> more_env: [] words: [{<edie>} {(DQ <'ERROR: setting -d or -t filter. Exiting.'>)}] redirects: [] do_fork: T ) ] spids: [856 889] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) ] spids: [839 853] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.AndOr children: [ (command.Pipeline negated: <Id.KW_Bang '!'> children: [ (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>} {<1>}] redirects: [ (Redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<'events/block/'> ($ Id.VSub_DollarName b_start) <'/enable'>} ) ] do_fork: T ) ] ops: [] ) (command.Pipeline negated: <Id.KW_Bang '!'> children: [ (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>} {<1>}] redirects: [ (Redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<'events/block/block_rq_complete/enable'>} ) ] do_fork: T ) ] ops: [] ) ] ops: [<Id.Op_DPipe _>] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.Simple blame_tok: <edie> more_env: [] words: [{<edie>} {(DQ <'ERROR: enabling block I/O tracepoints. Exiting.'>)}] redirects: [] do_fork: T ) ] spids: [903 932] ) ] else_action: [] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'etext='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'etext='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'etext='> name:etext) op: assign_op.Equal rhs: (rhs_word__Empty) ) ] redirects: [] ) (command.AndOr children: [ (command.DParen left: <Id.Op_DLeftParen _> child: (arith_expr.Unary op_id:Id.Arith_Bang child:($ Id.Lit_ArithVarLike opt_count)) right: <Id.Op_DRightParen _> redirects: [] ) (command.ShAssignment left: <Id.Lit_VarLike 'etext='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'etext='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'etext='> name:etext) op: assign_op.Equal rhs: {(DQ <' Ctrl-C to end.'>)} ) ] redirects: [] ) ] ops: [<Id.Op_DAmp _>] ) (command.Simple blame_tok: <echo> more_env: [] words: [ {<echo>} { (DQ <'Tracing block I/O. Output every '> ($ Id.VSub_DollarName interval) <' seconds.'> ($ Id.VSub_DollarName etext) ) } ] redirects: [] do_fork: T ) (command.ShAssignment left: <Id.Lit_VarLike 'offset='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'offset='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'offset='> name:offset) op: assign_op.Equal rhs: { (CommandSub left_token: <Id.Left_DollarParen '$('> child: (command.Simple blame_tok: <Id.VSub_DollarName '$awk'> more_env: [] words: [ {($ Id.VSub_DollarName awk)} { (SQ <'BEGIN { o = 0; }\n'> <'\t$1 == "#" && $2 ~ /TASK/ && NF == 6 { o = 1; }\n'> <'\t$2 ~ /TASK/ { print o; exit }'> ) } {<trace>} ] redirects: [] do_fork: T ) right: <Id.Eof_RParen _> ) } ) ] redirects: [] ) (command.Simple blame_tok: <warn> more_env: [] words: [{<warn>} {(DQ <'echo > trace'>)}] redirects: [] do_fork: T ) (command.ShAssignment left: <Id.Lit_VarLike 'i='> pairs: [ (AssignPair left: <Id.Lit_VarLike 'i='> lhs: (sh_lhs_expr.Name left:<Id.Lit_VarLike 'i='> name:i) op: assign_op.Equal rhs: {<0>} ) ] redirects: [] ) (command.Pipeline children: [ (command.WhileUntil keyword: <Id.KW_While while> cond: (condition.Shell commands: [ (command.Sentence child: (command.DParen left: <Id.Op_DLeftParen _> child: (arith_expr.Binary op_id: Id.Arith_DPipe left: (arith_expr.Unary op_id: Id.Arith_Bang child: ($ Id.Lit_ArithVarLike opt_count) ) right: (arith_expr.Binary op_id: Id.Arith_Less left: ($ Id.Lit_ArithVarLike i) right: ($ Id.Lit_ArithVarLike count) ) ) right: <Id.Op_DRightParen _> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) body: (command.DoGroup left: <Id.KW_Do do> children: [ (command.DParen left: <Id.Op_DLeftParen _> child: (arith_expr.UnaryAssign op_id: Id.Node_PostDPlus child: ($ Id.Lit_ArithVarLike i) ) right: <Id.Op_DRightParen _> redirects: [] ) (command.Simple blame_tok: <sleep> more_env: [] words: [{<sleep>} {($ Id.VSub_DollarName interval)}] redirects: [] do_fork: T ) (command.If if_kw: <Id.KW_If if> arms: [ (IfArm keyword: <Id.KW_If if> cond: (condition.Shell commands: [ (command.Sentence child: (command.DBracket left: <Id.KW_DLeftBracket '[['> expr: (bool_expr.Unary op_id:Id.BoolUnary_x child:{<snapshot>}) right: <Id.Lit_DRightBracket ']]'> redirects: [] ) terminator: <Id.Op_Semi _> ) ] ) then_kw: <Id.KW_Then then> action: [ (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>} {<1>}] redirects: [ (Redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<snapshot>} ) ] do_fork: T ) (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>}] redirects: [ (Redir op: <Id.Redir_Great '>'> loc: (redir_loc.Fd fd:1) arg: {<trace>} ) ] do_fork: T ) (command.Simple blame_tok: <cat> more_env: [] words: [{<cat>} {<snapshot>}] redirects: [] do_fork: T ) ] spids: [1060 1071] ) ] else_kw: <Id.KW_Else else> else_action: [ (command.Simple blame_tok: <cat> more_env: [] words: [{<cat>} {<trace>}] redirects: [] do_fork: T ) (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>}] redirects: [(Redir op:<Id.Redir_Great '>'> loc:(redir_loc.Fd fd:1) arg:{<trace>})] do_fork: T ) ] fi_kw: <Id.KW_Fi fi> redirects: [] ) (command.AndOr children: [ (command.DParen left: <Id.Op_DLeftParen _> child: ($ Id.Lit_ArithVarLike opt_timestamp) right: <Id.Op_DRightParen _> redirects: [] ) (command.Simple blame_tok: <printf> more_env: [] words: [ {<printf>} {(DQ <'time %(%H:%M:%S)T:'> <Id.Lit_BadBackslash '\\'> <n>)} {<-1>} ] redirects: [] do_fork: T ) ] ops: [<Id.Op_DAmp _>] ) (command.Simple blame_tok: <echo> more_env: [] words: [{<echo>} {(DQ <tick>)}] redirects: [] do_fork: T ) ] right: <Id.KW_Done done> ) redirects: [] ) (command.Simple blame_tok: <Id.VSub_DollarName '$awk'> more_env: [] words: [ {($ Id.VSub_DollarName awk)} {<-v>} {<Id.Lit_VarLike 'o='> ($ Id.VSub_DollarName offset)} {<-v>} {<Id.Lit_VarLike 'opt_timestamp='> ($ Id.VSub_DollarName opt_timestamp)} {<-v>} {<Id.Lit_VarLike 'b_start='> ($ Id.VSub_DollarName b_start)} { (SQ <'\n'> <'\tfunction star(sval, smax, swidth) {\n'> <'\t\tstars = ""\n'> <'\t\tif (smax == 0) return ""\n'> <'\t\tfor (si = 0; si < (swidth * sval / smax); si++) {\n'> <'\t\t\tstars = stars "#"\n'> <'\t\t}\n'> <'\t\treturn stars\n'> <'\t}\n'> <'\n'> <'\tBEGIN { max_i = 0 }\n'> <'\n'> <'\t# common fields\n'> <'\t$1 != "#" {\n'> <'\t\ttime = $(3+o); sub(":", "", time)\n'> <'\t\tdev = $(5+o)\n'> <'\t}\n'> <'\n'> <'\t# block I/O request\n'> <'\t$1 != "#" && $0 ~ b_start {\n'> <'\t\t#\n'> <'\t\t# example: (fields1..4+o) 202,1 W 0 () 12862264 + 8 [tar]\n'> <'\t\t# The cmd field "()" might contain multiple words (hex),\n'> <'\t\t# hence stepping from the right (NF-3).\n'> <'\t\t#\n'> <'\t\tloc = $(NF-3)\n'> <'\t\tstarts[dev, loc] = time\n'> <'\t\tnext\n'> <'\t}\n'> <'\n'> <'\t# block I/O completion\n'> <'\t$1 != "#" && $0 ~ /rq_complete/ {\n'> <'\t\t#\n'> <'\t\t# example: (fields1..4+o) 202,1 W () 12862256 + 8 [0]\n'> <'\t\t#\n'> <'\t\tdir = $(6+o)\n'> <'\t\tloc = $(NF-3)\n'> <'\n'> <'\t\tif (starts[dev, loc] > 0) {\n'> <'\t\t\tlatency_ms = 1000 * (time - starts[dev, loc])\n'> <'\t\t\ti = 0\n'> <'\t\t\tfor (ms = 1; latency_ms > ms; ms *= 2) { i++ }\n'> <'\t\t\thist[i]++\n'> <'\t\t\tif (i > max_i)\n'> <'\t\t\t\tmax_i = i\n'> <'\t\t\tdelete starts[dev, loc]\n'> <'\t\t}\n'> <'\t\tnext\n'> <'\t}\n'> <'\n'> <'\t# timestamp\n'> <'\t$1 == "time" {\n'> <'\t\tlasttime = $2\n'> <'\t}\n'> <'\n'> <'\t# print summary\n'> <'\t$1 == "tick" {\n'> <'\t\tprint ""\n'> <'\t\tif (opt_timestamp)\n'> <'\t\t\tprint lasttime\n'> <'\n'> <'\t\t# find max value\n'> <'\t\tmax_v = 0\n'> <'\t\tfor (i = 0; i <= max_i; i++) {\n'> <'\t\t\tif (hist[i] > max_v)\n'> <'\t\t\t\tmax_v = hist[i]\n'> <'\t\t}\n'> <'\n'> <'\t\t# print histogram\n'> <'\t\tprintf "%8s .. %-8s: %-8s |%-38s|\\n", ">=(ms)", "<(ms)",\n'> <'\t\t "I/O", "Distribution"\n'> <'\t\tms = 1\n'> <'\t\tfrom = 0\n'> <'\t\tfor (i = 0; i <= max_i; i++) {\n'> <'\t\t\tprintf "%8d -> %-8d: %-8d |%-38s|\\n", from, ms,\n'> <'\t\t\t hist[i], star(hist[i], max_v, 38)\n'> <'\t\t\tfrom = ms\n'> <'\t\t\tms *= 2\n'> <'\t\t}\n'> <'\t\tfflush()\n'> <'\t\tdelete hist\n'> <'\t\tdelete starts\t# invalid if events missed between snapshots\n'> <'\t\tmax_i = 0\n'> <'\t}\n'> <'\n'> <'\t$0 ~ /LOST.*EVENTS/ { print "WARNING: " $0 > "/dev/stderr" }\n'> ) } ] redirects: [] do_fork: T ) ] ops: [<Id.Op_Pipe _>] ) (command.Simple blame_tok:<end> more_env:[] words:[{<end>}] redirects:[] do_fork:T) ] )