rename `tools` to `packages` to follow convention

The convention is to use `pkgs` or `packages` for overlays and
definition of custom packages. Since I'm already using `pkg` for go,
I prefer to use `packages` for my scripts.

2 files changed, 0 insertions, 156 deletions

diff --git a/tools/scheddomain/go.mod b/tools/scheddomain/go.mod
deleted file mode 100644
index afbc83a..0000000
--- a/tools/scheddomain/go.mod
+++ /dev/null
@@ -1,3 +0,0 @@
-module golang.fcuny.net/scheddomain
-
-go 1.17
diff --git a/tools/scheddomain/main.go b/tools/scheddomain/main.go
deleted file mode 100644
index 1d0f5d3..0000000
--- a/tools/scheddomain/main.go
+++ /dev/null
@@ -1,153 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"path"
-	"path/filepath"
-	"strconv"
-	"strings"
-)
-
-// https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux/+/v4.17/include/linux/sched/topology.h#20
-var SDFlags = map[string]uint64{
-	"SD_LOAD_BALANCE":        0x0001,
-	"SD_BALANCE_NEWIDLE":     0x0002,
-	"SD_BALANCE_EXEC":        0x0004,
-	"SD_BALANCE_FORK":        0x0008,
-	"SD_BALANCE_WAKE":        0x0010,
-	"SD_WAKE_AFFINE":         0x0020,
-	"SD_ASYM_CPUCAPACITY":    0x0040,
-	"SD_SHARE_CPUCAPACITY":   0x0080,
-	"SD_SHARE_POWERDOMAIN":   0x0100,
-	"SD_SHARE_PKG_RESOURCES": 0x0200,
-	"SD_SERIALIZE":           0x0400,
-	"SD_ASYM_PACKING":        0x0800,
-	"SD_PREFER_SIBLING":      0x1000,
-	"SD_OVERLAP":             0x2000,
-	"SD_NUMA":                0x4000,
-}
-
-type Scheduler map[string][]Domain
-
-type Domain struct {
-	Name    string            `json:"name"`
-	Type    string            `json:"type"`
-	Flags   []string          `json:"flags"`
-	Indexes map[string]string `json:"indexes"`
-}
-
-func main() {
-	cpus, err := CPUs()
-	if err != nil {
-		fmt.Fprint(os.Stderr, err)
-		os.Exit(1)
-	}
-
-	if len(cpus) == 0 {
-		fmt.Fprint(os.Stderr, "there is no scheduler domains\n")
-		os.Exit(1)
-	}
-
-	sched := Scheduler{}
-	for _, cpu := range cpus {
-		_, cpuID := path.Split(cpu)
-		domains, err := domains(cpu)
-		if err != nil {
-			fmt.Fprint(os.Stderr, err)
-			os.Exit(1)
-		}
-		sched[cpuID] = domains
-	}
-	out, err := json.Marshal(sched)
-	if err != nil {
-		fmt.Fprint(os.Stderr, err)
-		os.Exit(1)
-	}
-	fmt.Println(string(out))
-}
-
-func domains(cpuPath string) ([]Domain, error) {
-	domainPath := fmt.Sprintf("%s/domain*", cpuPath)
-	availDomains, err := filepath.Glob(domainPath)
-	if err != nil {
-		return nil, fmt.Errorf("failed to get domains under %s: %v", cpuPath, err)
-	}
-
-	domains := []Domain{}
-
-	if len(availDomains) == 0 {
-		return domains, nil
-	}
-
-	for _, d := range availDomains {
-		_, dName := path.Split(d)
-		dType := getContent(d, "name")
-		flags, err := domainFlags(d)
-		if err != nil {
-			return nil, err
-		}
-		indexes := domainIndexes(d)
-
-		domain := Domain{
-			Name:    dName,
-			Type:    dType,
-			Flags:   flags,
-			Indexes: indexes,
-		}
-		domains = append(domains, domain)
-	}
-	return domains, nil
-}
-
-func domainFlags(path string) ([]string, error) {
-	flagPath := fmt.Sprintf("%s/flags", path)
-
-	content, err := ioutil.ReadFile(flagPath)
-	if err != nil {
-		return nil, fmt.Errorf("failed to read %s: %v", flagPath, err)
-	}
-
-	flags, err := strconv.ParseUint(strings.TrimSpace(string(content)), 0, 64)
-	if err != nil {
-		return nil, fmt.Errorf("failed to convert flags %s: %v", flagPath, err)
-	}
-
-	supportedFlags := []string{}
-	for k, v := range SDFlags {
-		if flags&v > 0 {
-			supportedFlags = append(supportedFlags, k)
-		}
-	}
-	return supportedFlags, nil
-}
-
-func domainIndexes(path string) map[string]string {
-	indexes := map[string]string{
-		"busy":      getContent(path, "busy_idx"),
-		"idle":      getContent(path, "idle_idx"),
-		"new_idle":  getContent(path, "newidle_idx"),
-		"wake":      getContent(path, "wake_idx"),
-		"fork_exec": getContent(path, "forkexec_idx"),
-	}
-	return indexes
-}
-
-func getContent(path, fileName string) string {
-	domainName := fmt.Sprintf("%s/%s", path, fileName)
-	name, err := ioutil.ReadFile(domainName)
-	if err != nil {
-		return ""
-	}
-	return strings.TrimSpace(string(name))
-}
-
-func CPUs() ([]string, error) {
-	cpus, err := filepath.Glob("/proc/sys/kernel/sched_domain/cpu*")
-	if err != nil {
-		return nil, fmt.Errorf("failed to get a list of cpus: %v", err)
-	}
-	return cpus, nil
-}