pt-summary added shared memory info - modified tests accordingly

bin/pt-summary

@@ -1443,6 +1443,7 @@ parse_free_minus_b () { local PTFUNCNAME=parse_free_minus_b;
    name_val "Total"   $(shorten $(awk '/Mem:/{print $2}' "${file}") 1)
    name_val "Free"    $(shorten $(awk '/Mem:/{print $4}' "${file}") 1)
    name_val "Used"    "physical = $(shorten ${physical} 1), swap allocated = $(shorten ${swap_alloc} 1), swap used = $(shorten ${swap_used} 1), virtual = ${virtual}"
+   name_val "Shared"  $(shorten $(awk '/Mem:/{print $5}' "${file}") 1)
    name_val "Buffers" $(shorten $(awk '/Mem:/{print $6}' "${file}") 1)
    name_val "Caches"  $(shorten $(awk '/Mem:/{print $7}' "${file}") 1)
    name_val "Dirty"  "$(awk '/Dirty:/ {print $2, $3}' "${file}")"

t/pt-summary/pt-summary.t

@@ -17,12 +17,11 @@ my ($tool) = $PROGRAM_NAME =~ m/([\w-]+)\.t$/;
 use Test::More tests => 2;
 
 for my $i (2..3) {
-
    ok(
       no_diff(
          sub { print `$trunk/bin/pt-summary --read-samples "$trunk/t/pt-summary/samples/Linux/00$i/" | tail -n+3` },
          "t/pt-summary/samples/Linux/output_00$i.txt"),
-      "--read-samples samples/Linux/00$i works"
+      "--read-samples samples/Linux/00$i works",
    );
 }
 

t/pt-summary/samples/Linux/003/memory

@@ -1,5 +1,5 @@
              total       used       free     shared    buffers     cached
-Mem:    1059586048  236732416  822853632          0   51183616  127881216
+Mem:    1059586048  236732416  822853632    1357284   51183616  127881216
 -/+ buffers/cache:   57667584 1001918464
 Swap:   2147475456          0 2147475456
 MemTotal:      1034752 kB

t/pt-summary/samples/Linux/output_002.txt

@@ -17,6 +17,7 @@ Architecture | CPU = 32-bit, OS = 32-bit
        Total | 1010.5M
         Free | 784.4M
         Used | physical = 226.1M, swap allocated = 2.0G, swap used = 0.0, virtual = 226.1M
+      Shared | 0.0
      Buffers | 48.8M
       Caches | 122.2M
        Dirty | 152 kB

t/pt-summary/samples/Linux/output_003.txt

@@ -17,6 +17,7 @@ Architecture | CPU = 32-bit, OS = 32-bit
        Total | 1010.5M
         Free | 784.7M
         Used | physical = 225.8M, swap allocated = 2.0G, swap used = 0.0, virtual = 225.8M
+      Shared | 1.3M
      Buffers | 48.8M
       Caches | 122.0M
        Dirty | 80 kB