# Generate an ascii summary from lmbench result files.
# Usage: getsummary file file file...
#
# Hacked into existence by Larry McVoy (lm@sun.com now lm@sgi.com).
# Copyright (c) 1994 Larry McVoy.  GPLed software.
# $Id$
eval 'exec perl -Ssw $0 "$@"'
	if 0;

# Use these constants to same typo-induced bugs later!
$M = 1000000.;
$K = 1000.;

$n = 0;
foreach $file (@ARGV) {
	open(FD, $file) || die "$0: can't open $file";
	$file =~ s/\.\d+$//;
        @_ = split(/\//, $file);
	push(@host, $_[$#_]);
	$file = $_[$#_ - 1];
	$file =~ s|/|-|;
	push(@file, $file);
	$lat_mem_rd_type = -1;
	$mhz = 0;
	while (<FD>) {
		chop;
		next if m|scripts/lmbench: /dev/tty|;
		if (/^\[lmbench/) {
			$version = -1;
			push(@uname, $_);
			if (/lmbench1\./) {
				$version = 1;
			}
			if (/lmbench2\./) {
				$version = 2;
			}
			if (/lmbench3\./) {
				$version = 3;
			}
		}
		if (/MHZ/ && !$mhz) {
			@_ = split;
			$_[1] =~ s/\]//;
			push(@misc_mhz, $_[1]);
			$mhz = 1;
		} elsif (/Mhz/ && !$mhz) {
			@_ = split;
			push(@misc_mhz, $_[0]);
			$mhz = 1;
		}
		if (/^Select on 100 fd/) {
			@_ = split;
			push(@lat_fd_select, $_[4]);
		}
		if (/^Select on 100 tcp fd/) {
			@_ = split;
			push(@lat_tcp_select, $_[5]);
		}
		if (/^integer bit:/) {
			@_ = split;
			push(@integer_bit, $_[2]);
		}
		if (/^integer add:/) {
			@_ = split;
			push(@integer_add, $_[2]);
		}
		if (/^integer mul:/) {
			@_ = split;
			push(@integer_mul, $_[2]);
		}
		if (/^integer div:/) {
			@_ = split;
			push(@integer_div, $_[2]);
		}
		if (/^integer mod:/) {
			@_ = split;
			push(@integer_mod, $_[2]);
		}
		if (/^int64 bit:/) {
			@_ = split;
			push(@int64_bit, $_[2]);
		}
		if (/^int64 add:/) {
			@_ = split;
			push(@int64_add, $_[2]);
		}
		if (/^int64 mul:/) {
			@_ = split;
			push(@int64_mul, $_[2]);
		}
		if (/^int64 div:/) {
			@_ = split;
			push(@int64_div, $_[2]);
		}
		if (/^int64 mod:/) {
			@_ = split;
			push(@int64_mod, $_[2]);
		}
		if (/^float add:/) {
			@_ = split;
			push(@float_add, $_[2]);
		}
		if (/^float mul:/) {
			@_ = split;
			push(@float_mul, $_[2]);
		}
		if (/^float div:/) {
			@_ = split;
			push(@float_div, $_[2]);
		}
		if (/^double add:/) {
			@_ = split;
			push(@double_add, $_[2]);
		}
		if (/^double mul:/) {
			@_ = split;
			push(@double_mul, $_[2]);
		}
		if (/^double div:/) {
			@_ = split;
			push(@double_div, $_[2]);
		}
		if (/^float bogomflops:/) {
			@_ = split;
			push(@float_bogomflops, $_[2]);
		}
		if (/^double bogomflops:/) {
			@_ = split;
			push(@double_bogomflops, $_[2]);
		}
		if (/LINE_SIZE/) {
			@_ = split;
			$_[1] =~ s/\]//;
			push(@line_size, $_[1]);
		}
		if (/SYNC_MAX/) {
			@_ = split;
			$_[1] =~ s/\]//;
			push(@load, $_[1]);
		}
		if (/^tlb:/) {
			@_ = split;
			push(@tlb, $_[1]);
		}
		if (/^Simple syscall:/) {
			@_ = split;
			push(@lat_syscall, $_[2]);
		}
		if (/^Simple read:/) {
			@_ = split;
			push(@lat_read, $_[2]);
		}
		if (/^Simple write:/) {
			@_ = split;
			push(@lat_write, $_[2]);
		}
		if (/^Simple stat:/) {
			@_ = split;
			push(@lat_stat, $_[2]);
		}
		if (/^Simple open.close:/) {
			@_ = split;
			push(@lat_openclose, $_[2]);
		}
		if (/^Null syscall:/) {	# Old format.
			@_ = split;
			push(@lat_write, $_[2]);
		}
		if (/^Signal handler installation:/) {
			@_ = split;
			push(@lat_siginstall, $_[3]);
		}
		if (/^Signal handler overhead:/) {
			@_ = split;
			push(@lat_sigcatch, $_[3]);
		}
		if (/^Protection fault:/) {
			@_ = split;
			push(@lat_protfault, $_[2]);
		}
		if (/^Pipe latency:/) {
			@_ = split;
			push(@lat_pipe, $_[2]);
		}
		if (/AF_UNIX sock stream latency:/) {
			@_ = split;
			push(@lat_unix, $_[4]);
		}
		if (/UDP latency using localhost:/) {
			@_ = split;
			push(@lat_udp_local, $_[4]);
		} elsif (/UDP latency using/) {
			@_ = split;
			push(@lat_udp_remote, $_[4]);
		}
		if (/TCP latency using localhost:/) {
			@_ = split;
			push(@lat_tcp_local, $_[4]);
		} elsif (/TCP latency using/) {
			@_ = split;
			push(@lat_tcp_remote, $_[4]);
		}
		if (/RPC.udp latency using localhost:/) {
			@_ = split;
			push(@lat_rpc_udp_local, $_[4]);
		} elsif (/RPC.udp latency using/) {
			@_ = split;
			push(@lat_rpc_udp_remote, $_[4]);
		}
		if (/RPC.tcp latency using localhost:/) {
			@_ = split;
			push(@lat_rpc_tcp_local, $_[4]);
		} elsif (/RPC.tcp latency using/) {
			@_ = split;
			push(@lat_rpc_tcp_remote, $_[4]);
		}
		if (/TCP.IP connection cost to localhost:/) {
			@_ = split;
			push(@lat_tcp_connect_local, $_[5]);
		} elsif (/TCP.IP connection cost to/) {
			@_ = split;
			push(@lat_tcp_connect_remote, $_[5]);
		}
		if (/^Socket bandwidth using localhost/) {
			$value = &getbiggest("Socket bandwidth using localhost");
			push(@bw_tcp_local, $value);
#		} elsif (/^Socket bandwidth using /) {
#			$value = &getbiggest("Socket bandwidth using remote");
#			push(@bw_tcp_remote, $value);
		}
		if (/^AF_UNIX sock stream bandwidth:/) {
			@_ = split;
			push(@bw_unix, $_[4]);
		}
		if (/^Process fork.exit/) {
			@_ = split;
			push(@lat_nullproc, $_[2]);
		}
		if (/^Process fork.execve:/) {
			@_ = split;
			push(@lat_simpleproc, $_[2]);
		}
		if (/^Process fork..bin.sh/) {
			@_ = split;
			push(@lat_shproc, $_[3]);
		}
		if (/^Pipe bandwidth/) {
			@_ = split;
			push(@bw_pipe, $_[2]);
		}
		if (/^File .* write bandwidth/) {
			@_ = split;
			$bw = sprintf("%.2f", $_[4] / 1024.);
			push(@bw_file, $bw);
		}
		if (/^Pagefaults on/) {
			@_ = split;
			push(@lat_pagefault, $_[3]);
		}
		if (/^"mappings/) {
			$value = &getbiggest("memory mapping timing");
			push(@lat_mappings, $value);
		}
		if (/^"read bandwidth/) {
			$value = &getbiggest("reread timing");
			push(@bw_reread, $value);
		}
		if (/^"Mmap read bandwidth/) {
			$value = &getbiggest("mmap reread timing");
			push(@bw_mmap, $value);
		}
		if (/^"libc bcopy unaligned/) {
			$value = &getbiggest("libc bcopy timing");
			push(@bw_bcopy_libc, $value);
		}
		if (/^"unrolled bcopy unaligned/) {
			$value = &getbiggest("unrolled bcopy timing");
			push(@bw_bcopy_unrolled, $value);
		}
		if (/^Memory read/) {
			$value = &getbiggest("memory read & sum timing");
			push(@bw_mem_rdsum, $value);
		}
		if (/^Memory write/) {
			$value = &getbiggest("memory write timing");
			push(@bw_mem_wr, $value);
		}
		if (/^Memory load parallelism/) {
			$value = &getbiggest("Memory load parallelism");
			push(@mem_load_par, $value);
		}

		if (/^"File system latency/) {
			while (<FD>) {
				next if /Id:/;
				if (/^0k/) {
					@_ = split;
					push(@fs_create_0k, $_[2]);
					push(@fs_delete_0k, $_[3]);
				} elsif (/^1k/) {
					@_ = split;
					push(@fs_create_1k, $_[2]);
					push(@fs_delete_1k, $_[3]);
				} elsif (/^4k/) {
					@_ = split;
					push(@fs_create_4k, $_[2]);
					push(@fs_delete_4k, $_[3]);
				} elsif (/^10k/) {
					@_ = split;
					push(@fs_create_10k, $_[2]);
					push(@fs_delete_10k, $_[3]);
				} else {
					last;
				}
			}
		}
		if (/size=0/) {
			while (<FD>) {
				if (/^2 /) {
					@_ = split; push(@lat_ctx0_2, $_[1]);
				} elsif (/^8 /) {
					@_ = split; push(@lat_ctx0_8, $_[1]);
				} elsif (/^16 /) {
					@_ = split; push(@lat_ctx0_16, $_[1]);
				}
			    	last if /^\s*$/ || /^Memory/;
			}
		}
		if (/size=16/) {
			while (<FD>) {
				if (/^2 /) {
					@_ = split; push(@lat_ctx16_2, $_[1]);
				} elsif (/^8 /) {
					@_ = split; push(@lat_ctx16_8, $_[1]);
				} elsif (/^16 /) {
					@_ = split; push(@lat_ctx16_16, $_[1]);
				}
			    	last if /^\s*$/;
			}
		}
		if (/size=64/) {
			while (<FD>) {
				if (/^2 /) {
					@_ = split; push(@lat_ctx64_2, $_[1]);
				} elsif (/^8 /) {
					@_ = split; push(@lat_ctx64_8, $_[1]);
				} elsif (/^16 /) {
					@_ = split; push(@lat_ctx64_16, $_[1]);
				}
			    	last if /^\s*$/ || /^20/;
			}
		}
		if (/^Memory load latency/) {
			$lat_mem_rd_type = 1;
		}
		if (/^Random load latency/) {
			$lat_mem_rd_type = 2;
		}
		if (/^"stride=128/) {
			$save = -1;
			while (<FD>) {
				if (/^\s*$/) {
					last;
				}
				@_ = split;
				$size = $_[0];
				$save = $_[1];
				if ($size == 0.00098 && $lat_mem_rd_type == 1) {
					push(@lat_l1, $_[1]);
				} elsif ($size == 0.12500 && $lat_mem_rd_type == 1) {
					push(@lat_l2, $_[1]);
				}
			}
			if ($size < 8.0) {
				warn "$file: No 8MB memory latency, using $size\n";
			}
			if ($lat_mem_rd_type == 1) {
				push(@lat_mem, $save);
			}
		}
		if (/^"stride=16/) {
			$save = -1;
			while (<FD>) {
				if (/^\s*$/) {
					last;
				}
				@_ = split;
				$size = $_[0];
				$save = $_[1];
			}
			if ($size < 8.0) {
				warn "$file: No 8MB random access memory latency, using $size\n";
			}
			if ($lat_mem_rd_type == 2) {
				#warn "$file: lat_mem_rand = $save\n";
				push(@lat_mem_rand, $save);
			}
		}
	}
	@warn = ();
	foreach $array (
		'bw_bcopy_libc', 'bw_bcopy_unrolled', 'bw_file',
		'bw_mem_rdsum', 'bw_mem_wr', 'bw_mmap', 'bw_pipe',
		'bw_reread', 'bw_tcp_local', 'bw_tcp_remote', 'bw_unix', 
		'double_add', 'double_bogomflops', 'double_div', 'double_mul',
		'float_add', 'float_bogomflops', 'float_div', 'float_mul',
		'fs_create_0k', 'fs_create_1k', 'fs_create_4k',
		'fs_create_10k', 'fs_delete_0k', 'fs_delete_1k',
		'fs_delete_4k', 'fs_delete_10k', 'integer_add',
		'integer_bit', 'integer_div', 'integer_mod', 'integer_mul',
		'lat_ctx0_2', 'lat_ctx0_8', 'lat_ctx0_16',
		'lat_ctx16_2', 'lat_ctx16_8', 'lat_ctx16_16',
		'lat_ctx64_2', 'lat_ctx64_8', 'lat_ctx64_16', 
		'lat_l1', 'lat_l2', 'lat_mappings', 'lat_mem', 
		'lat_mem_rand', 'lat_nullproc',
		'lat_openclose', 'lat_pagefault', 'lat_pipe',
		'lat_protfault', 'lat_read', 'lat_rpc_tcp_local', 
		'lat_rpc_tcp_remote', 'lat_rpc_udp_local', 
		'lat_rpc_udp_remote', 'lat_fd_select', 'lat_tcp_select',
		'lat_shproc', 'lat_sigcatch', 'lat_siginstall', 
		'lat_simpleproc', 'lat_stat', 'lat_syscall', 
		'lat_tcp_connect_local', 'lat_tcp_connect_remote', 
		'lat_tcp_local', 'lat_tcp_remote',
		'lat_udp_local', 'lat_udp_remote', 'lat_unix', 'lat_write', 
		'line_size', 'mem_load_par', 'misc_mhz', 'tlb', 'load',
		'int64_add', 'int64_bit', 'int64_div', 'int64_mod',
		'int64_mul'
	) {
		$last = eval '$#' . $array;
		if ($last != $n) {
			#warn "No data for $array in $file\n";
			push(@warn, $array);
			eval 'push(@' . $array . ', -1);';
		}
	}
#	if ($#warn != -1) {
#		warn "Missing data in $file: @warn\n";
#	}
	$n++;
}

print<<EOF;

                 L M B E N C H  3 . 0   S U M M A R Y
                 ------------------------------------
		 (Alpha software, do not distribute)

EOF

&print_basic;
&print_process;
&print_int;
&print_uint64;
&print_float;
&print_double;
&print_ctx;
&print_ipc_local;
&print_ipc_remote;
&print_file_vm;
&print_bw_ipc_local;
&print_mem;

exit 0;

sub print_basic
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'tlb', 'line_size', 'mem_load_par' )) <= 0) { 
		return; 
	}
	print<<EOF;
Basic system parameters
------------------------------------------------------------------------------
Host                 OS Description              Mhz  tlb  cache  mem   scal
                                                     pages line   par   load
                                                           bytes  
--------- ------------- ----------------------- ---- ----- ----- ------ ----
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'tlb', 'line_size', 'mem_load_par' )) <= 0) {
			next; 
		}
	        printf "%-9.9s %13.13s %23.23s ", 
			$host[$i], &getos($uname[$i]), $file[$i];
		printf "%4.4s %5.5s %5.5s %6.6s %4.4s\n",
			&inum($misc_mhz[$i], 4),
			&inum($tlb[$i], 5),
			&inum($line_size[$i], 5),
			&num($mem_load_par[$i], 6),
			&inum($load[$i], 4);
	}
}

sub print_process
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'lat_syscall', 'lat_read', 'lat_write',
				'lat_stat', 'lat_openclose', 'lat_tcp_select',
				'lat_siginstall', 'lat_sigcatch', 
				'lat_nullproc', 'lat_simpleproc', 
				'lat_shproc' )) <= 0) { 
		return; 
	}
	print<<EOF;

Processor, Processes - times in microseconds - smaller is better
------------------------------------------------------------------------------
Host                 OS  Mhz null null      open slct sig  sig  fork exec sh  
                             call  I/O stat clos TCP  inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
EOF

	@fs_delete_4k = @lat_ctx0_8 = @bw_file = @lat_ctx0_16 = @fs_delete_1k =
	@fs_create_4k = @fs_create_1k
	if 0;	# lint

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'lat_syscall', 'lat_read', 'lat_write',
				'lat_stat', 'lat_openclose', 'lat_tcp_select',
				'lat_siginstall', 'lat_sigcatch', 
				'lat_nullproc', 'lat_simpleproc', 
				'lat_shproc' )) <= 0) { 
			next;
		}
		# If they have no /dev/zero, use /dev/null, else average them.
		if ($lat_read[$i] == -1) {
			$tmp = $lat_write[$i];
		} else {
			$tmp = ($lat_read[$i] + $lat_write[$i]) / 2;
		}
	        printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
		printf "%4.0f %4.4s %4.4s %4.4s %4.4s %4.4s %4.4s %4.4s %4.4s %4.4s %4.4s\n",
			$misc_mhz[$i],
			&num($lat_syscall[$i], 4),
			&num($tmp, 4),
			&num($lat_stat[$i], 4),
			&num($lat_openclose[$i], 4),
			&num($lat_tcp_select[$i], 4),
			&num($lat_siginstall[$i], 4),
			&num($lat_sigcatch[$i], 4),
			&num($lat_nullproc[$i], 4),
			&num($lat_simpleproc[$i], 4),
			&num($lat_shproc[$i], 4);
	}
}

sub print_int
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'integer_bit', 'integer_add', 
				'integer_mul', 'integer_div',
				'integer_mod' )) <= 0) { 
		return; 
	}
	print<<EOF;

Basic integer operations - times in nanoseconds - smaller is better
-------------------------------------------------------------------
Host                 OS  intgr intgr  intgr  intgr  intgr  
                          bit   add    mul    div    mod   
--------- ------------- ------ ------ ------ ------ ------ 
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'integer_bit', 'integer_add', 
					'integer_mul', 'integer_div',
					'integer_mod' )) <= 0) { 
			next; 
		}
		if ($load[$i] > 1) {
			next;
		}
		printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
		printf "%6.6s %6.6s %6.6s %6.6s %6.6s\n",
			&scale_num($integer_bit[$i], 6, $load[$i]),
			&scale_num($integer_add[$i], 6, $load[$i]),
			&scale_num($integer_mul[$i], 6, $load[$i]),
			&scale_num($integer_div[$i], 6, $load[$i]),
			&scale_num($integer_mod[$i], 6,	$load[$i]);
	}
}

sub print_uint64
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'int64_bit', 'int64_add', 
				'int64_mul', 'int64_div',
				'int64_mod' )) <= 0) { 
		return; 
	}
	print<<EOF;

Basic uint64 operations - times in nanoseconds - smaller is better
------------------------------------------------------------------
Host                 OS int64  int64  int64  int64  int64  
                         bit    add    mul    div    mod   
--------- ------------- ------ ------ ------ ------ ------ 
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'int64_bit', 'int64_add', 
					'int64_mul', 'int64_div',
					'int64_mod' )) <= 0) { 
			next; 
		}
		if ($load[$i] > 1) {
			next;
		}
        	printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
		printf " %5.5s %6.6s %6.6s %6.6s %6.6s\n",
			&scale_num($int64_bit[$i], 6, $load[$i]),
			&scale_num($int64_add[$i], 6, $load[$i]),
			&scale_num($int64_mul[$i], 6, $load[$i]),
			&scale_num($int64_div[$i], 6, $load[$i]),
			&scale_num($int64_mod[$i], 6, $load[$i]);
	}
}

sub print_float
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'float_add', 'float_mul', 'float_div',
					'float_bogomflops' )) <= 0) { 
		return; 
	}
	print<<EOF;

Basic float operations - times in nanoseconds - smaller is better
-----------------------------------------------------------------
Host                 OS  float  float  float  float
                         add    mul    div    bogo
--------- ------------- ------ ------ ------ ------ 
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'float_add', 'float_mul', 
					'float_div', 
					'float_bogomflops' )) <= 0) { 
			next; 
		}
		if ($load[$i] > 1) {
			next;
		}
	        printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
		printf "%6.6s %6.6s %6.6s %6.6s\n",
			&scale_num($float_add[$i], 6, $load[$i]),
			&scale_num($float_mul[$i], 6, $load[$i]),
			&scale_num($float_div[$i], 6, $load[$i]),
			&scale_num($float_bogomflops[$i], 6, $load[$i]);
	}
}

sub print_double
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'double_add', 'double_mul', 'double_div',
					'double_bogomflops' )) <= 0) { 
		return; 
	}
	print<<EOF;

Basic double operations - times in nanoseconds - smaller is better
------------------------------------------------------------------
Host                 OS  double double double double
                         add    mul    div    bogo
--------- ------------- ------  ------ ------ ------ 
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'double_add', 'double_mul', 
					'double_div', 
					'double_bogomflops' )) <= 0) { 
			next; 
		}
		if ($load[$i] > 1) {
			next;
		}
	        printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
		printf "%6.6s %6.6s %6.6s %6.6s\n",
			&scale_num($double_add[$i], 6, $load[$i]),
			&scale_num($double_mul[$i], 6, $load[$i]),
			&scale_num($double_div[$i], 6, $load[$i]),
			&scale_num($double_bogomflops[$i], 6, $load[$i]);
	}
}

sub print_ctx
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'lat_ctx0_2', 'lat_ctx16_2',
				'lat_ctx64_2', 'lat_ctx16_8',
				'lat_ctx64_8', 'lat_ctx16_16',
				'lat_ctx64_16' )) <= 0) { 
		return; 
	}
	print<<EOF;

Context switching - times in microseconds - smaller is better
-------------------------------------------------------------------------
Host                 OS  2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
                         ctxsw  ctxsw  ctxsw ctxsw  ctxsw   ctxsw   ctxsw
--------- ------------- ------ ------ ------ ------ ------ ------- -------
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'lat_ctx0_2', 'lat_ctx16_2',
				'lat_ctx64_2', 'lat_ctx16_8',
				'lat_ctx64_8', 'lat_ctx16_16',
				'lat_ctx64_16' )) <= 0) { 
			next; 
		}
	        printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
		printf "%6.6s %6.6s %6.6s %6.6s %6.6s %7.7s %7.7s\n",
			&num($lat_ctx0_2[$i], 6),
			&num($lat_ctx16_2[$i], 6),
			&num($lat_ctx64_2[$i], 6),
			&num($lat_ctx16_8[$i], 6),
			&num($lat_ctx64_8[$i], 6),
			&num($lat_ctx16_16[$i], 7),
			&num($lat_ctx64_16[$i], 7);
	}
}

sub print_ipc_local
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'lat_ctx0_2', 'lat_pipe', 
				'lat_unix', 'lat_udp_local',
				'lat_rpc_udp_local', 'lat_tcp_local',
				'lat_rpc_tcp_local', 
				'lat_tcp_connect_local' )) <= 0) { 
		return; 
	}
	print<<EOF;

*Local* Communication latencies in microseconds - smaller is better
---------------------------------------------------------------------
Host                 OS 2p/0K  Pipe AF     UDP  RPC/   TCP  RPC/ TCP
                        ctxsw       UNIX         UDP         TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'lat_ctx0_2', 'lat_pipe', 
				'lat_unix', 'lat_udp_local',
				'lat_rpc_udp_local', 'lat_tcp_local',
				'lat_rpc_tcp_local', 
				'lat_tcp_connect_local' )) <= 0) { 
			next; 
		}
	        printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
        	printf "%5.5s %5.5s %4.4s %5.5s %5.5s %5.5s %5.5s %4.4s\n",
			&num($lat_ctx0_2[$i], 5),
			&num($lat_pipe[$i], 5),
			&num($lat_unix[$i], 4),
			&num($lat_udp_local[$i], 5),
			&num($lat_rpc_udp_local[$i], 5),
			&num($lat_tcp_local[$i], 5),
			&num($lat_rpc_tcp_local[$i], 5),
			&scale_num($lat_tcp_connect_local[$i], 5, $load[$i]);
	}
}

sub print_ipc_remote
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'lat_udp_remote', 
				'lat_rpc_udp_remote', 'lat_tcp_remote', 
				'lat_rpc_tcp_remote', 
				'lat_tcp_connect_remote' )) <= 0) { 
		return; 
	}
	print<<EOF;

*Remote* Communication latencies in microseconds - smaller is better
---------------------------------------------------------------------
Host                 OS   UDP  RPC/  TCP   RPC/ TCP
                               UDP         TCP  conn
--------- ------------- ----- ----- ----- ----- ----
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'lat_udp_remote', 
				'lat_rpc_udp_remote', 'lat_tcp_remote', 
				'lat_rpc_tcp_remote', 
				'lat_tcp_connect_remote' )) <= 0) { 
			next; 
		}
	        printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
	        printf "%5.5s %5.5s %5.5s %5.5s %4.4s\n",
			&num($lat_udp_remote[$i], 5),
			&num($lat_rpc_udp_remote[$i], 5),
			&num($lat_tcp_remote[$i], 5),
			&num($lat_rpc_tcp_remote[$i], 5),
			&scale_num($lat_tcp_connect_remote[$i], 4, $load[$i]);
	}
}

sub print_file_vm
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'fs_create_0k', 'fs_create_10k',
				'fs_delete_0k', 'fs_delete_10k',
				'lat_mappings', 'lat_protfault',
				'lat_pagefault' )) <= 0) { 
		return; 
	}
	print<<EOF;

File & VM system latencies in microseconds - smaller is better
-------------------------------------------------------------------------------
Host                 OS   0K File      10K File     Mmap    Prot   Page   100fd
                        Create Delete Create Delete Latency Fault  Fault  selct
--------- ------------- ------ ------ ------ ------ ------- ----- ------- -----
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'fs_create_0k', 'fs_create_10k',
				'fs_delete_0k', 'fs_delete_10k',
				'lat_mappings', 'lat_protfault',
				'lat_pagefault' )) <= 0) { 
			next; 
		}
	        printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
		$c0k = $fs_create_0k[$i] <= 0 ? -1 : $M / $fs_create_0k[$i];
		$c10k = $fs_create_10k[$i] <= 0 ? -1 : $M / $fs_create_10k[$i];
		$d0k = $fs_delete_0k[$i] <= 0 ? -1 : $M / $fs_delete_0k[$i];
		$d10k = $fs_delete_10k[$i] <= 0 ? -1 : $M / $fs_delete_10k[$i];
		printf "%6.6s %6.6s %6.6s %6.6s %7.7s %5.5s %7.7s %5.5s\n",
			&scale_num($c0k, 6, $load[$i]),
			&scale_num($d0k, 6, $load[$i]),
			&scale_num($c10k, 6, $load[$i]),
			&scale_num($d10k, 6, $load[$i]),
			&num($lat_mappings[$i], 7),
			&num($lat_protfault[$i], 5),
			&num($lat_pagefault[$i], 7),
			&num($lat_fd_select[$i], 5);
	}
}

sub print_bw_ipc_local
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'bw_pipe', 'bw_unix', 
				'bw_tcp_local', 'bw_reread',
				'bw_bcopy_libc', 'bw_bcopy_unrolled',
				'bw_mem_rdsum' , 'bw_mem_wr' )) <= 0) { 
		return; 
	}
	print<<EOF;

*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------------------------
Host                OS  Pipe AF    TCP  File   Mmap  Bcopy  Bcopy  Mem   Mem
                             UNIX      reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'bw_pipe', 'bw_unix', 
				'bw_tcp_local', 'bw_reread',
				'bw_bcopy_libc', 'bw_bcopy_unrolled',
				'bw_mem_rdsum' , 'bw_mem_wr' )) <= 0) { 
			next; 
		}
	        printf "%-9.9s %13.13s ", $host[$i], &getos($uname[$i]);
	        printf "%4.4s %4.4s %4.4s %6.6s %6.6s %6.6s %6.6s %4.4s %5.5s\n",
			&num($bw_pipe[$i], 4),
			&num($bw_unix[$i], 4),
			&num($bw_tcp_local[$i], 4),
			&num($bw_reread[$i], 6),
			&num($bw_mmap[$i], 6),
			&num($bw_bcopy_libc[$i], 6),
			&num($bw_bcopy_unrolled[$i], 6),
			&num($bw_mem_rdsum[$i], 4),
			&num($bw_mem_wr[$i], 5);
	}
}

sub print_mem
{
	local($i);
	local($t);
	
	if (&resultsq(0, $#uname, ( 'lat_l1', 'lat_l2', 'lat_mem' )) <= 0) { 
		return; 
	}
	print<<EOF;

Memory latencies in nanoseconds - smaller is better
    (WARNING - may not be correct, check graphs)
------------------------------------------------------------------------------
Host                 OS   Mhz   L1 \$   L2 \$    Main mem    Rand mem    Guesses
--------- -------------   ---   ----   ----    --------    --------    -------
EOF

	for ($i = 0; $i <= $#uname; $i++) {
		if (&resultsq($i, $i, ( 'lat_l1', 'lat_l2', 'lat_mem' )) <= 0) { 
			next; 
		}
	        printf "%-9.9s %13.13s  %4d",
		    $host[$i], &getos($uname[$i]), $misc_mhz[$i];
		$msg = &check_caches;
		if ($lat_l1[$i] < 0) {
	        	printf "%6s %6s %11s    %s",
			    "-", "-", "-",
			    "Bad mhz?";
		} else {
			printf " %6.6s %6.6s %11.11s %11.11s",
		            &num($lat_l1[$i], 6),
		            &num($lat_l2[$i], 6),
		            &num($lat_mem[$i], 8),
		            &num($lat_mem_rand[$i], 8);
			print $msg if ($msg =~ /L/);
		}
		print "\n";
	}
}


# checks to see if there are any valid results
# 
sub resultsq
{
	local($low, $high, @pars) = @_;
	local($i);
	local($val);

	for ($i = $low; $i <= $high; $i++) {
		foreach $p (@pars) {
			$val = eval '$' . $p . '[' . $i . ']';
			if ($val) {  #REVIEW was ($val > 0)
				return (1);
			}
		}
	}
	return (0);
}

# (33, %3d)
sub inum
{
	local($val, $len) = @_;
	local($str) = "";
	local($i);

	if (!defined($val) || !($val =~ /^[ 	]*[0-9.]+[ 	]*$/)) {
		$val = -1;
	}
	if ($val <= 0) {
		$str = "";
		for ($i = 0; $i < $len; $i++) {
			$str .= " ";
		}
		return ($str);
	}

	$fmt = sprintf("%%%dd", $len);
	$str = sprintf($fmt, $val);

	$str;
}
# (33, %3d, scale)
sub scale_num
{
	local($val, $len, $scale) = @_;

	if ($scale > 1) {
		$val = -1
	}
	return (&num($val, $len));
}
# (33, %3d)
sub num
{
	local($val, $len) = @_;
	local($str) = "";
	local($i);

	if (!defined($val) || !($val =~ /^[ 	]*[0-9.]+[ 	]*$/)) {
		$val = -1;
	}
	if ($val <= 0) {
		$str = "";
		for ($i = 0; $i < $len; $i++) {
			$str .= " ";
		}
		return ($str);
	}
	if ($val >= 10 * $M) {
		$nstr = sprintf("%.1f", $val / $M);
		$fmt = sprintf("%%%d.%ds%%s", $len - 1, $len - 1);
		$str = sprintf($fmt, $nstr, "M");
	} elsif ($val >= 10 * $K) {
		$nstr = sprintf("%.1f", $val / $K);
		$fmt = sprintf("%%%d.%ds%%s", $len - 1, $len - 1);
		$str = sprintf($fmt, $nstr, "K");
	} elsif ($val >= 10) {
		$nstr = sprintf("%.1f", $val);
		$fmt = sprintf("%%%d.%ds", $len, $len);
		$str = sprintf($fmt, $nstr);
	} elsif ($val < 0.001) {
		$fmt = sprintf("%%%d.%de", $len, $len - 6);
		$str = sprintf($fmt, $val);
	} else {
		$fmt = sprintf("%%%d.%df", $len, $len - 2);
		$str = sprintf($fmt, $val);
	}
	$str;
}

# Input looks like
# "benchmark name
# size value
# ....
# <blank line>
#
# Return the biggest value before the blank line.
sub getbiggest
{
	local($msg) = @_;
	local($line) = 0;

	undef $save;
	$value = 0;
	while (<FD>) {
		$line++;
		#warn "$line $_";
		last if /^\s*$/;
		last if (!($_ =~ /^\d+/));
		$save = $_ if /^\d+\./;
	}
	if (defined $save) {
		$_ = $save;
		@d = split;
		$value = $d[1];
		if (int($d[0]) < 4) {
			warn "$file: using $d[0] size for $msg\n";
		}
	} else {
		warn "$file: no data for $msg\n";
	}
	$value;
}


# Try and create sensible names from uname -a output
sub getos
{
        local(@info);

        @info = split(/\s+/, $_[0]);
        "$info[3] $info[5]";
}

# Return true if the values differe by less than 10%
sub same
{
	local($a, $b) = @_;

	if ($a > $b) {
		$percent = (($a - $b) / $a) * 100;
	} else {
		$percent = (($b - $a) / $b) * 100;
	}
	return ($percent <= 20);
}

sub check_caches
{
	if (!&same($lat_l1[$i], $lat_l2[$i]) &&
	    &same($lat_l2[$i], $lat_mem[$i])) {
		"    No L2 cache?";
	} elsif (&same($lat_l1[$i], $lat_l2[$i])) {
		"    No L1 cache?";
	}
}