Performance!

diff --git a/planeteer.go b/planeteer.go
index a2406ab30cf9a2ec6a0a79ab2afdcbc03e1232f0..5e406fab68fde9a6823e4a9efe16355b60422780 100644 (file)
--- a/planeteer.go
+++ b/planeteer.go
@@ -21,6 +21,7 @@ import "flag"
 import "fmt"
 import "json"
 import "os"
 import "fmt"
 import "json"
 import "os"

+import "runtime/pprof"

 import "strings"
 
 var funds = flag.Int("funds", 0,
 import "strings"
 
 var funds = flag.Int("funds", 0,


@@ -62,29 +63,44 @@ var battery_price = flag.Int("battery_price", 0, "Today's Shield Battery price")
 var visit_string = flag.String("visit", "",
        "A comma-separated list of planets to make sure to visit")
 
 var visit_string = flag.String("visit", "",
        "A comma-separated list of planets to make sure to visit")
 

+var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file")
+
+
+var visit_cache []string

 func visit() []string {
 func visit() []string {

-       if *visit_string == "" {
-               return nil
+       if visit_cache == nil {
+               if *visit_string == "" {
+                       return nil
+               }
+               visit_cache = strings.Split(*visit_string, ",")

        }
        }

-       return strings.Split(*visit_string, ",")
+       return visit_cache

 }
 
 }
 

+var flight_plan_cache []string

 func flight_plan() []string {
 func flight_plan() []string {

-       if *flight_plan_string == "" {
-               return nil
+       if flight_plan_cache == nil {
+               if *flight_plan_string == "" {
+                       return nil
+               }
+               flight_plan_cache = strings.Split(*flight_plan_string, ",")

        }
        }

-       return strings.Split(*flight_plan_string, ",")
+       return flight_plan_cache

 }
 
 }
 

+var end_cache map[string]bool

 func end() map[string]bool {
 func end() map[string]bool {

-       if *end_string == "" {
-               return nil
-       }
-       m := make(map[string]bool)
-       for _, p := range strings.Split(*end_string, ",") {
-               m[p] = true
+       if end_cache == nil {
+               if *end_string == "" {
+                       return nil
+               }
+               m := make(map[string]bool)
+               for _, p := range strings.Split(*end_string, ",") {
+                       m[p] = true
+               }
+               end_cache = m

        }
        }

-       return m
+       return end_cache

 }
 
 type Commodity struct {
 }
 
 type Commodity struct {


@@ -664,6 +680,14 @@ func IndexCommodities(m *map[string]Commodity, start_at int) (map[string]int, []
 
 func main() {
        flag.Parse()
 
 func main() {
        flag.Parse()

+       if *cpuprofile != "" {
+               f, err := os.Create(*cpuprofile)
+               if err != nil {
+                       panic(err)
+               }
+               pprof.StartCPUProfile(f)
+               defer pprof.StopCPUProfile()
+       }

        data := ReadData()
        if *drone_price > 0 {
                temp := data.Commodities["Fighter Drones"]
        data := ReadData()
        if *drone_price > 0 {
                temp := data.Commodities["Fighter Drones"]