/
memory.go
154 lines (133 loc) · 5.89 KB
/
memory.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package talos
import (
"context"
"fmt"
"os"
"text/tabwriter"
"github.com/spf13/cobra"
"google.golang.org/grpc"
"google.golang.org/grpc/peer"
"github.com/siderolabs/talos/cmd/talosctl/pkg/talos/helpers"
"github.com/siderolabs/talos/pkg/cli"
machineapi "github.com/siderolabs/talos/pkg/machinery/api/machine"
"github.com/siderolabs/talos/pkg/machinery/client"
)
var verbose bool
// memoryCmd represents the processes command.
var memoryCmd = &cobra.Command{
Use: "memory",
Aliases: []string{"m", "free"},
Short: "Show memory usage",
Long: ``,
Args: cobra.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
return WithClient(func(ctx context.Context, c *client.Client) error {
var remotePeer peer.Peer
resp, err := c.Memory(ctx, grpc.Peer(&remotePeer))
if err != nil {
if resp == nil {
return fmt.Errorf("error getting memory stats: %s", err)
}
cli.Warning("%s", err)
}
if verbose {
verboseRender(&remotePeer, resp)
} else {
err = briefRender(&remotePeer, resp)
if err != nil {
return err
}
}
return helpers.CheckErrors(resp.Messages...)
})
},
}
func briefRender(remotePeer *peer.Peer, resp *machineapi.MemoryResponse) error {
w := tabwriter.NewWriter(os.Stdout, 0, 0, 3, ' ', 0)
fmt.Fprintln(w, "NODE\tTOTAL\tUSED\tFREE\tSHARED\tBUFFERS\tCACHE\tAVAILABLE")
defaultNode := client.AddrFromPeer(remotePeer)
for _, msg := range resp.Messages {
node := defaultNode
if msg.Metadata != nil {
node = msg.Metadata.Hostname
}
// Default to displaying output as MB
fmt.Fprintf(w, "%s\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",
node,
msg.Meminfo.Memtotal/1024,
(msg.Meminfo.Memtotal-msg.Meminfo.Memfree-msg.Meminfo.Cached-msg.Meminfo.Buffers)/1024,
msg.Meminfo.Memfree/1024,
msg.Meminfo.Shmem/1024,
msg.Meminfo.Buffers/1024,
msg.Meminfo.Cached/1024,
msg.Meminfo.Memavailable/1024,
)
}
return w.Flush()
}
func verboseRender(remotePeer *peer.Peer, resp *machineapi.MemoryResponse) {
defaultNode := client.AddrFromPeer(remotePeer)
// Dump as /proc/meminfo
for _, msg := range resp.Messages {
node := defaultNode
if msg.Metadata != nil {
node = msg.Metadata.Hostname
}
fmt.Printf("%s: %s\n", "NODE", node)
fmt.Printf("%s: %d %s\n", "MemTotal", msg.Meminfo.Memtotal, "kB")
fmt.Printf("%s: %d %s\n", "MemFree", msg.Meminfo.Memfree, "kB")
fmt.Printf("%s: %d %s\n", "MemAvailable", msg.Meminfo.Memavailable, "kB")
fmt.Printf("%s: %d %s\n", "Buffers", msg.Meminfo.Buffers, "kB")
fmt.Printf("%s: %d %s\n", "Cached", msg.Meminfo.Cached, "kB")
fmt.Printf("%s: %d %s\n", "SwapCached", msg.Meminfo.Swapcached, "kB")
fmt.Printf("%s: %d %s\n", "Active", msg.Meminfo.Active, "kB")
fmt.Printf("%s: %d %s\n", "Inactive", msg.Meminfo.Inactive, "kB")
fmt.Printf("%s: %d %s\n", "ActiveAnon", msg.Meminfo.Activeanon, "kB")
fmt.Printf("%s: %d %s\n", "InactiveAnon", msg.Meminfo.Inactiveanon, "kB")
fmt.Printf("%s: %d %s\n", "ActiveFile", msg.Meminfo.Activefile, "kB")
fmt.Printf("%s: %d %s\n", "InactiveFile", msg.Meminfo.Inactivefile, "kB")
fmt.Printf("%s: %d %s\n", "Unevictable", msg.Meminfo.Unevictable, "kB")
fmt.Printf("%s: %d %s\n", "Mlocked", msg.Meminfo.Mlocked, "kB")
fmt.Printf("%s: %d %s\n", "SwapTotal", msg.Meminfo.Swaptotal, "kB")
fmt.Printf("%s: %d %s\n", "SwapFree", msg.Meminfo.Swapfree, "kB")
fmt.Printf("%s: %d %s\n", "Dirty", msg.Meminfo.Dirty, "kB")
fmt.Printf("%s: %d %s\n", "Writeback", msg.Meminfo.Writeback, "kB")
fmt.Printf("%s: %d %s\n", "AnonPages", msg.Meminfo.Anonpages, "kB")
fmt.Printf("%s: %d %s\n", "Mapped", msg.Meminfo.Mapped, "kB")
fmt.Printf("%s: %d %s\n", "Shmem", msg.Meminfo.Shmem, "kB")
fmt.Printf("%s: %d %s\n", "Slab", msg.Meminfo.Slab, "kB")
fmt.Printf("%s: %d %s\n", "SReclaimable", msg.Meminfo.Sreclaimable, "kB")
fmt.Printf("%s: %d %s\n", "SUnreclaim", msg.Meminfo.Sunreclaim, "kB")
fmt.Printf("%s: %d %s\n", "KernelStack", msg.Meminfo.Kernelstack, "kB")
fmt.Printf("%s: %d %s\n", "PageTables", msg.Meminfo.Pagetables, "kB")
fmt.Printf("%s: %d %s\n", "NFSUnstable", msg.Meminfo.Nfsunstable, "kB")
fmt.Printf("%s: %d %s\n", "Bounce", msg.Meminfo.Bounce, "kB")
fmt.Printf("%s: %d %s\n", "WritebackTmp", msg.Meminfo.Writebacktmp, "kB")
fmt.Printf("%s: %d %s\n", "CommitLimit", msg.Meminfo.Commitlimit, "kB")
fmt.Printf("%s: %d %s\n", "CommittedAS", msg.Meminfo.Committedas, "kB")
fmt.Printf("%s: %d %s\n", "VmallocTotal", msg.Meminfo.Vmalloctotal, "kB")
fmt.Printf("%s: %d %s\n", "VmallocUsed", msg.Meminfo.Vmallocused, "kB")
fmt.Printf("%s: %d %s\n", "VmallocChunk", msg.Meminfo.Vmallocchunk, "kB")
fmt.Printf("%s: %d %s\n", "HardwareCorrupted", msg.Meminfo.Hardwarecorrupted, "kB")
fmt.Printf("%s: %d %s\n", "AnonHugePages", msg.Meminfo.Anonhugepages, "kB")
fmt.Printf("%s: %d %s\n", "ShmemHugePages", msg.Meminfo.Shmemhugepages, "kB")
fmt.Printf("%s: %d %s\n", "ShmemPmdMapped", msg.Meminfo.Shmempmdmapped, "kB")
fmt.Printf("%s: %d %s\n", "CmaTotal", msg.Meminfo.Cmatotal, "kB")
fmt.Printf("%s: %d %s\n", "CmaFree", msg.Meminfo.Cmafree, "kB")
fmt.Printf("%s: %d\n", "HugePagesTotal", msg.Meminfo.Hugepagestotal)
fmt.Printf("%s: %d\n", "HugePagesFree", msg.Meminfo.Hugepagesfree)
fmt.Printf("%s: %d\n", "HugePagesRsvd", msg.Meminfo.Hugepagesrsvd)
fmt.Printf("%s: %d\n", "HugePagesSurp", msg.Meminfo.Hugepagessurp)
fmt.Printf("%s: %d %s\n", "Hugepagesize", msg.Meminfo.Hugepagesize, "kB")
fmt.Printf("%s: %d %s\n", "DirectMap4k", msg.Meminfo.Directmap4K, "kB")
fmt.Printf("%s: %d %s\n", "DirectMap2M", msg.Meminfo.Directmap2M, "kB")
fmt.Printf("%s: %d %s\n", "DirectMap1G", msg.Meminfo.Directmap1G, "kB")
}
}
func init() {
memoryCmd.Flags().BoolVarP(&verbose, "verbose", "v", false, "display extended memory statistics")
addCommand(memoryCmd)
}