top_debian_terminal

#Linux: avere informazioni sulle ram installate

#Linux, da qualche tempo il mio #OS di default (adesso ho #debian9 con #xfce – da quando ancora in rc – la versione definitiva verrà rilasciata tra un paio di giorni), è un sistema che mi piace sempre più! Oggi, ad esempio, stavo cercando info per eventuale upgrade hardware e provavo a capire un po’ di più sulle ram installate e l’eventuale capacità massima. Da breve ricerca, ho subito trovato due comandini da terminale che danno tutte le info utili (meglio che smontarlo e cercare il manuale della mobo) xD

Capacità massima (dalla motherboard):

[email protected]:/# dmidecode -t 16
# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.5 present.

Handle 0x002D, DMI type 16, 15 bytes
Physical Memory Array
    Location: System Board Or Motherboard
    Use: System Memory
    Error Correction Type: None
    Maximum Capacity: 8 GB
    Error Information Handle: Not Provided
    Number Of Devices: 4

Info sulle ram installate:

[email protected]:/# dmidecode -t 17
# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.5 present.

Handle 0x002F, DMI type 17, 27 bytes
Memory Device
    Array Handle: 0x002D
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 72 bits
    Size: 2048 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM0
    Bank Locator: BANK0
    Type: DDR2
    Type Detail: Synchronous
    Speed: Unknown
    Manufacturer: Manufacturer0
    Serial Number: SerNum0
    Asset Tag: AssetTagNum0
    Part Number: PartNum0

Handle 0x0031, DMI type 17, 27 bytes
Memory Device
    Array Handle: 0x002D
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 72 bits
    Size: 2048 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM1
    Bank Locator: BANK1
    Type: DDR2
    Type Detail: Synchronous
    Speed: Unknown
    Manufacturer: Manufacturer1
    Serial Number: SerNum1
    Asset Tag: AssetTagNum1
    Part Number: PartNum1

Handle 0x0033, DMI type 17, 27 bytes
Memory Device
    Array Handle: 0x002D
    Error Information Handle: Not Provided
    Total Width: Unknown
    Data Width: Unknown
    Size: No Module Installed
    Form Factor: DIMM
    Set: None
    Locator: DIMM2
    Bank Locator: BANK2
    Type: Unknown
    Type Detail: Unknown
    Speed: Unknown
    Manufacturer: Manufacturer2
    Serial Number: SerNum2
    Asset Tag: AssetTagNum2
    Part Number: PartNum2

Handle 0x0035, DMI type 17, 27 bytes
Memory Device
    Array Handle: 0x002D
    Error Information Handle: Not Provided
    Total Width: Unknown
    Data Width: Unknown
    Size: No Module Installed
    Form Factor: DIMM
    Set: None
    Locator: DIMM3
    Bank Locator: BANK3
    Type: Unknown
    Type Detail: Unknown
    Speed: Unknown
    Manufacturer: Manufacturer3
    Serial Number: SerNum3
    Asset Tag: AssetTagNum3
    Part Number: PartNum3

Ram libera/usata:

[email protected]:/# free
              total        used        free      shared  buff/cache   available
Mem:        4051200     3413844      179476      174648      457880      239932
Swap: 4190204 81532 4108672

##### Oppure #####

[email protected]:/# cat /proc/meminfo
MemTotal: 4051200 kB
MemFree: 111884 kB
MemAvailable: 174380 kB
Buffers: 16304 kB
Cached: 427780 kB
SwapCached: 14252 kB
Active: 3030744 kB
Inactive: 714556 kB
Active(anon): 2884228 kB
Inactive(anon): 613472 kB
Active(file): 146516 kB
Inactive(file): 101084 kB
Unevictable: 96 kB
Mlocked: 96 kB
SwapTotal: 4190204 kB
SwapFree: 4097268 kB
Dirty: 188 kB
Writeback: 0 kB
AnonPages: 3287948 kB
Mapped: 362120 kB
Shmem: 196464 kB
Slab: 78568 kB
SReclaimable: 37736 kB
SUnreclaim: 40832 kB
KernelStack: 9232 kB
PageTables: 51208 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 6215804 kB
Committed_AS: 8253088 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 0 kB
VmallocChunk: 0 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 155392 kB
DirectMap2M: 4038656 kB

Volete sapere tutto in tempo reale?

[email protected]:/# top

top - 19:27:27 up  1:06,  1 user,  load average: 1,71, 1,45, 1,02
Tasks: 211 total,   1 running, 208 sleeping,   0 stopped,   2 zombie
%Cpu(s):  5,4 us,  1,8 sy,  0,0 ni, 92,1 id,  0,7 wa,  0,0 hi,  0,0 si,  0,0 st
KiB Mem :  4051200 total,   146620 free,  3497220 used,   407360 buff/cache
KiB Swap:  4190204 total,  3935316 free,   254888 used.   153764 avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND     
  697 root      20   0  507292 109620  22572 S   4,3  2,7   5:47.86 Xorg        
 2924 lupastro  20   0  504148  22252  12064 S   3,0  0,5   0:04.29 xfce4-term+ 
 1007 lupastro  20   0 1817924 224820  35708 S   1,7  5,5   1:48.39 thunderbird 
 2853 lupastro  20   0 1215772 385748 106028 S   1,3  9,5   0:46.92 chrome      
 3159 lupastro  20   0 1119452 272520  60828 S   1,3  6,7   0:10.67 chrome      
 1955 lupastro  20   0 1389628 215112  97604 S   0,7  5,3   4:48.17 chrome      
 2894 lupastro  20   0 1154792 313680  84020 S   0,7  7,7   2:40.94 chrome      
 3152 root      20   0   45040   3160   2392 R   0,7  0,1   0:00.43 top         
  834 lupastro  20   0  192824  13136   8960 S   0,3  0,3   0:42.29 xfwm4       
  898 lupastro  20   0  423924  16968  10460 S   0,3  0,4   0:10.74 xfce4-panel 
  936 lupastro  20   0  173924   7184   6420 S   0,3  0,2   0:04.88 panel-19-c+ 
 1269 root      20   0       0      0      0 S   0,3  0,0   0:03.62 kworker/0:5 
 1780 lupastro  20   0 1254108 641196  11988 S   0,3 15,8   0:25.83 gimp-2.8    
 2131 lupastro  20   0 1548388 374960 104644 S   0,3  9,3   0:58.44 chrome      
 2666 root      20   0       0      0      0 S   0,3  0,0   0:02.85 kworker/u4+ 
    1 root      20   0  139224   2888   1748 S   0,0  0,1   0:01.06 systemd     
    2 root      20   0       0      0      0 S   0,0  0,0   0:00.00 kthreadd    
    3 root      20   0       0      0      0 S   0,0  0,0   0:00.10 ksoftirqd/0 
    4 root      20   0       0      0      0 S   0,0  0,0   0:02.63 kworker/0:0 
    5 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 kworker/0:+ 
    7 root      20   0       0      0      0 S   0,0  0,0   0:03.14 rcu_sched   
    8 root      20   0       0      0      0 S   0,0  0,0   0:00.00 rcu_bh      
    9 root      rt   0       0      0      0 S   0,0  0,0   0:00.00 migration/0 
   10 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 lru-add-dr+ 
   11 root      rt   0       0      0      0 S   0,0  0,0   0:00.01 watchdog/0  
   12 root      20   0       0      0      0 S   0,0  0,0   0:00.00 cpuhp/0     
   13 root      20   0       0      0      0 S   0,0  0,0   0:00.00 cpuhp/1     
   14 root      rt   0       0      0      0 S   0,0  0,0   0:00.00 watchdog/1  
   15 root      rt   0       0      0      0 S   0,0  0,0   0:00.14 migration/1 
   16 root      20   0       0      0      0 S   0,0  0,0   0:00.65 ksoftirqd/1 
   18 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 kworker/1:+ 
   19 root      20   0       0      0      0 S   0,0  0,0   0:00.00 kdevtmpfs   
   20 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 netns       
   21 root      20   0       0      0      0 S   0,0  0,0   0:00.00 khungtaskd  
   22 root      20   0       0      0      0 S   0,0  0,0   0:00.00 oom_reaper  
   23 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 writeback   
   24 root      20   0       0      0      0 S   0,0  0,0   0:00.00 kcompactd0  
   26 root      25   5       0      0      0 S   0,0  0,0   0:00.00 ksmd        
   27 root      39  19       0      0      0 S   0,0  0,0   0:00.00 khugepaged  
   28 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 crypto      
   29 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 kintegrityd 
   30 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 bioset      
   31 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 kblockd     
   32 root       0 -20       0      0      0 S   0,0  0,0   0:00.00 devfreq_wq

 

Facile, non trovate? 😀

 

Altri comandi utili da segnalare? Tanto da farci un articolo? Commentate 😉

Lascia un commento

Il tuo indirizzo email non sarà pubblicato. I campi obbligatori sono contrassegnati *