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gabeno/list_timing_results

Created July 24, 2015 11:28
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List Timing Results
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list_timing_results
# tests done on an ubuntu vm
concat 1.65812611580 milliseconds
append 0.07023715973 milliseconds
list comprehension 0.03012800217 milliseconds
list range 0.00904202461 milliseconds
@gabeno
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gabeno commented Jul 24, 2015

See code here: https://github.com/gabeno/cs/commit/8ebb77771d09ad0d65208048f587ec93e96033ef

Vm box details:

$ uname -a
Linux gm-server 3.16.0-30-generic #40~14.04.1-Ubuntu SMP Thu Jan 15 17:43:14 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
$ cat /proc/cpuinfo
processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model       : 69
model name  : Intel(R) Core(TM) i5-4258U CPU @ 2.40GHz
stepping    : 1
microcode   : 0x19
cpu MHz     : 2407.737
cache size  : 6144 KB
physical id : 0
siblings    : 1
core id     : 0
cpu cores   : 1
apicid      : 0
initial apicid  : 0
fpu     : yes
fpu_exception   : yes
cpuid level : 5
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 syscall nx rdtscp lm constant_tsc rep_good nopl pni monitor ssse3 lahf_lm
bogomips    : 4815.47
clflush size    : 64
cache_alignment : 64
address sizes   : 39 bits physical, 48 bits virtual
power management:
$ cat /proc/meminfo
MemTotal:        2049768 kB
MemFree:         1823936 kB
MemAvailable:    1864056 kB
Buffers:           32720 kB
Cached:           124344 kB
SwapCached:            0 kB
Active:            80468 kB
Inactive:          95540 kB
Active(anon):      21008 kB
Inactive(anon):     9628 kB
Active(file):      59460 kB
Inactive(file):    85912 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:       2097148 kB
SwapFree:        2097148 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:         18984 kB
Mapped:            29468 kB
Shmem:             11696 kB
Slab:              24028 kB
SReclaimable:      14740 kB
SUnreclaim:         9288 kB
KernelStack:        2288 kB
PageTables:         3196 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     3122032 kB
Committed_AS:     211956 kB
VmallocTotal:   34359738367 kB
VmallocUsed:        7868 kB
VmallocChunk:   34359719492 kB
HardwareCorrupted:     0 kB
AnonHugePages:         0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       18368 kB
DirectMap2M:     2078720 kB

@gabeno
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gabeno commented Jul 24, 2015

factor in time for calling a function, eliminate this overhead (https://github.com/gabeno/cs/commit/5f45810826a616767a9aedcbe596366c556a5f20):

time for calling a function 0.00007104874 milliseconds
concat 1.61438107491 milliseconds
append 0.07360911369 milliseconds
list comprehension 0.02981185913 milliseconds
list range 0.00812816620 milliseconds

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