Sorry, I should have started off with a time output. Thanks for
pointing this out Eric. Here are my time output.
A basic gem list.
$ /usr/bin/time -v gem list -r
[...]
A simulation/game with autonomous creatures
Command being timed: "gem list -r"
User time (seconds): 34.23
System time (seconds): 2.52
Percent of CPU this job got: 28%
Elapsed (wall clock) time (h:mm:ss or m:ss): 2:10.74
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 0
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 507
Minor (reclaiming a frame) page faults: 19980
Voluntary context switches: 8424
Involuntary context switches: 19218
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
...and here is the output with an actual update. Note how this took
almost 41 minutes.
# /usr/bin/time -v gem update
Updating installed gems...
Bulk updating Gem source index for: http://gems.rubyforge.org
Gems: [] updated
Command being timed: "gem update"
User time (seconds): 56.06
System time (seconds): 19.18
Percent of CPU this job got: 3%
Elapsed (wall clock) time (h:mm:ss or m:ss): 40:51.63
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 0
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 147876
Minor (reclaiming a frame) page faults: 303281
Voluntary context switches: 307667
Involuntary context switches: 19396
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0
#
...and here are the specs on this machine.
# hwd -s
HARDWARE DETECT ver 4.8.2 (simple mode)
Kernel : 2.6.20-ARCH
CPU & Cache: Processor 0 is Pentium III (Katmai) 515MHz, 512 KB Cache
[...]
#
Apparently, it seems that the system only has 128MB RAM instead of the
original 512MB that I was thinking.
# free -om
total used free shared buffers cached
Mem: 123 120 2 0 20 72
Swap: 956 84 872
# cat /proc/meminfo
MemTotal: 126072 kB
MemFree: 2176 kB
Buffers: 20616 kB
Cached: 74416 kB
SwapCached: 7984 kB
Active: 85792 kB
Inactive: 17432 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 126072 kB
LowFree: 2176 kB
SwapTotal: 979924 kB
SwapFree: 893748 kB
Dirty: 2748 kB
Writeback: 0 kB
AnonPages: 8096 kB
Mapped: 64828 kB
Slab: 12572 kB
SReclaimable: 3912 kB
SUnreclaim: 8660 kB
PageTables: 1160 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 1042960 kB
Committed_AS: 281076 kB
VmallocTotal: 901112 kB
VmallocUsed: 6284 kB
VmallocChunk: 894544 kB
Thanks,
Farhan
Eric Hodel wrote:
> On Aug 18, 2007, at 23:21, Eric Hodel wrote:
>
>> On Aug 18, 2007, at 14:28, Farhan Ahmad wrote:
>>
>>> I have been looking into why 'gem update' has been taking hours
>>> and hours on my computer to complete. Given that it's only a 700Mhz
>>> machine with 512MB RAM I still didn't think that would qualify it
>>> for such
>>> slow updates.
>>>
>> How much RAM is it using? I see about 120MB max with a bulk update
>> on OS X.
>>
>
> Second data point, ~20 minutes and ~70MB resident on a machine that
> should be at least an order of magnitude, possibly two, slower than
> yours.
>
> CPU: Geode(TM) Integrated Processor by National Semi (266.66-MHz 586-
> class CPU)
> Origin = "Geode by NSC" Id = 0x540 Stepping = 0
> Features=0x808131<FPU,TSC,MSR,CX8,CMOV,MMX>
> real memory = 134217728 (128 MB)
> avail memory = 126078976 (120 MB)
>
> $ /usr/bin/time -l gem list -r
>
> *** REMOTE GEMS ***
> Bulk updating Gem source index for: http://gems.rubyforge.org
>
> [...]
> 1223.66 real 508.13 user 62.21 sys
> 71700 maximum resident set size
> 3 average shared memory size
> 34417 average unshared data size
> 127 average unshared stack size
> 158228 page reclaims
> 51651 page faults
> 0 swaps
> 13 block input operations
> 40 block output operations
> 9 messages sent
> 1291 messages received
> 52739 signals received
> 51681 voluntary context switches
> 142100 involuntary context switches
>
> --
> Poor workers blame their tools. Good workers build better tools. The
> best workers get their tools to do the work for them. -- Syndicate Wars
>
>
> _______________________________________________
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> http://rubyforge.org/mailman/listinfo/rubygems-developers
>
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