The newbie may misunderstand the performance is not good if they use Colab-IDE first time. (rx-0-2-0)

[milochen0418]

When a developer uses their computer to run, the speed is excellent. But Colab-IDE is too slow. So newbies may evaluate incorrectly if they are first-time use Colab-IDE. So we need to give them some reason and don't make them misunderstand.

[milochen0418]

There are two reasons that may cause the speed of the Colab-IDE slower the computer.

(1) Tunnel (2) instance of colab is not powerful.

We can research these way

[milochen0418]

Get some cpu information for the colab instance of the free version.

$ cat /proc/cpuinfo

processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model       : 79
model name  : Intel(R) Xeon(R) CPU @ 2.20GHz
stepping    : 0
microcode   : 0xffffffff
cpu MHz     : 2199.998
cache size  : 56320 KB
physical id : 0
siblings    : 2
core id     : 0
cpu cores   : 1
apicid      : 0
initial apicid  : 0
fpu     : yes
fpu_exception   : yes
cpuid level : 13
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt arat md_clear arch_capabilities
bugs        : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa mmio_stale_data retbleed
bogomips    : 4399.99
clflush size    : 64
cache_alignment : 64
address sizes   : 46 bits physical, 48 bits virtual
power management:

processor   : 1
vendor_id   : GenuineIntel
cpu family  : 6
model       : 79
model name  : Intel(R) Xeon(R) CPU @ 2.20GHz
stepping    : 0
microcode   : 0xffffffff
cpu MHz     : 2199.998
cache size  : 56320 KB
physical id : 0
siblings    : 2
core id     : 0
cpu cores   : 1
apicid      : 1
initial apicid  : 1
fpu     : yes
fpu_exception   : yes
cpuid level : 13
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt arat md_clear arch_capabilities
bugs        : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa mmio_stale_data retbleed
bogomips    : 4399.99
clflush size    : 64
cache_alignment : 64
address sizes   : 46 bits physical, 48 bits virtual
power management:

$ lscpu

Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   46 bits physical, 48 bits virtual
CPU(s):                          2
On-line CPU(s) list:             0,1
Thread(s) per core:              2
Core(s) per socket:              1
Socket(s):                       1
NUMA node(s):                    1
Vendor ID:                       GenuineIntel
CPU family:                      6
Model:                           79
Model name:                      Intel(R) Xeon(R) CPU @ 2.20GHz
Stepping:                        0
CPU MHz:                         2199.998
BogoMIPS:                        4399.99
Hypervisor vendor:               KVM
Virtualization type:             full
L1d cache:                       32 KiB
L1i cache:                       32 KiB
L2 cache:                        256 KiB
L3 cache:                        55 MiB
NUMA node0 CPU(s):               0,1
Vulnerability Itlb multihit:     Not affected
Vulnerability L1tf:              Mitigation; PTE Inversion
Vulnerability Mds:               Vulnerable; SMT Host state unknown
Vulnerability Meltdown:          Vulnerable
Vulnerability Mmio stale data:   Vulnerable
Vulnerability Retbleed:          Vulnerable
Vulnerability Spec store bypass: Vulnerable
Vulnerability Spectre v1:        Vulnerable: __user pointer sanitization and use
                                 rcopy barriers only; no swapgs barriers
Vulnerability Spectre v2:        Vulnerable, IBPB: disabled, STIBP: disabled, PB
                                 RSB-eIBRS: Not affected
Vulnerability Srbds:             Not affected
Vulnerability Tsx async abort:   Vulnerable
Flags:                           fpu vme de pse tsc msr pae mce cx8 apic sep mtr
                                 r pge mca cmov pat pse36 clflush mmx fxsr sse s
                                 se2 ss ht syscall nx pdpe1gb rdtscp lm constant
                                 _tsc rep_good nopl xtopology nonstop_tsc cpuid 
                                 tsc_known_freq pni pclmulqdq ssse3 fma cx16 pci
                                 d sse4_1 sse4_2 x2apic movbe popcnt aes xsave a
                                 vx f16c rdrand hypervisor lahf_lm abm 3dnowpref
                                 etch invpcid_single ssbd ibrs ibpb stibp fsgsba
                                 se tsc_adjust bmi1 hle avx2 smep bmi2 erms invp
                                 cid rtm rdseed adx smap xsaveopt arat md_clear 
                                 arch_capabilities

reference:

• https://learnubuntu.com/get-cpu-info/
• https://www.cpubenchmark.net/cpu.php?cpu=Intel+Xeon+%40+2.20GHz&id=3212

[milochen0418]

We made a video to show how many times the increase is if we add Ngrok tunnel. https://www.youtube.com/watch?v=OgXTFoAlNoQ