memory
Michael Havens
bmike1 at gmail.com
Fri Oct 10 08:34:20 MST 2014
thanks for confirming my thoughts in the matter.
:-)~MIKE~(-:
On Fri, Oct 10, 2014 at 5:55 AM, Stephen Partington <cryptworks at gmail.com>
wrote:
> Most hardware will drop to the least common denominator. So you should be
> fine.
> On Oct 9, 2014 10:37 PM, "Michael Havens" <bmike1 at gmail.com> wrote:
>
>> sorry about the delay.... I had to go to work.
>>
>> top - 22:16:50 up 1 day, 8:59, 2 users, load average: 0.30, 0.19, 0.15
>> Tasks: 168 total, 2 running, 166 sleeping, 0 stopped, 0 zombie
>> %Cpu(s): 12.0 us, 2.3 sy, 0.0 ni, 84.1 id, 1.7 wa, 0.0 hi, 0.0 si,
>> 0.0 st
>> KiB Mem: 1983332 total, 1812836 used, 170496 free, 57184 buffers
>> KiB Swap: 5855656 total, 40496 used, 5815160 free. 560792 cached
>> Mem
>>
>> it looks to me like the additional memory will be beneficial.
>>
>> Nobody answered my question; if I am sent the 533 Mhz ram instead of the
>> 800 will the different speed rams play together? The reason I ask is Amazon
>> sent me a letter saying my order (the 533 Mhz) had shipped then I tried to
>> change my order and the company said that it wouldn't be a problem.
>> Further, they didn't charge me more so I am thinking they are BSing me. But
>> if they did that I would write a negative customer feedback report. SO I
>> guess they really are sending me the right memory for the price I paid for
>> the slower memory. This company is Computer Memory Solutions
>> <http://www.amazon.com/gp/node/index.html?ie=UTF8&marketplaceID=ATVPDKIKX0DER&me=A1X44CXPYKK87E&merchant=A1X44CXPYKK87E&redirect=true>
>> .
>>
>> :-)~MIKE~(-:
>>
>> On Thu, Oct 9, 2014 at 7:49 PM, Mark Phillips <mark at phillipsmarketing.biz
>> > wrote:
>>
>>> I have found the best number to watch is the amount of swap used. If
>>> that grows, then you need more RAM. If you are running slow and not using
>>> swap, then adding RAM won't help.
>>>
>>> Mark
>>>
>>> On Thu, Oct 9, 2014 at 4:53 PM, Carruth, Rusty <Rusty at smartm.com> wrote:
>>>
>>>> Unless his problem is LACK of ram. Yes, I know it said 489M free.
>>>> Without a look at top I’m not convinced yet that he won’t see any
>>>> improvement.
>>>>
>>>>
>>>>
>>>> Here is ‘top’ from a machine which is pretty un-loaded:
>>>>
>>>>
>>>>
>>>> top - 16:40:14 up 63 days, 1:12, 3 users, load average: 0.42, 0.62,
>>>> 0.67
>>>>
>>>> Tasks: 287 total, 1 running, 282 sleeping, 0 stopped, 4 zombie
>>>>
>>>> Cpu(s): 3.8%us, 0.9%sy, 0.0%ni, 95.3%id, 0.0%wa, 0.0%hi, 0.0%si,
>>>> 0.0%st
>>>>
>>>> Mem: 2564652k total, 2053712k used, 510940k free, 91448k buffers
>>>>
>>>> Swap: 6095864k total, 371340k used, 5724524k free, 516624k cached
>>>>
>>>>
>>>>
>>>> And here’s a top from one of our servers:
>>>>
>>>>
>>>>
>>>> top - 16:42:03 up 141 days, 19:59, 6 users, load average: 0.00, 0.02,
>>>> 0.05
>>>>
>>>> Tasks: 274 total, 1 running, 273 sleeping, 0 stopped, 0 zombie
>>>>
>>>> %Cpu(s): 3.1 us, 0.6 sy, 0.0 ni, 96.0 id, 0.3 wa, 0.0 hi, 0.0
>>>> si, 0.0 st
>>>>
>>>> KiB Mem: 32898652 total, 32469852 used, 428800 free, 2711252 buffers
>>>>
>>>> KiB Swap: 33506300 total, 1224 used, 33505076 free, 22613684 cached
>>>>
>>>>
>>>>
>>>> (yeah, 32G of ram. I can edit (using emacs) a 20G file with NO
>>>> problems. I know because I have)
>>>>
>>>>
>>>>
>>>> Again, nice and responsive (but then this machine says:
>>>>
>>>>
>>>>
>>>> /var/log/dmesg:[ 0.000007] Calibrating delay loop (skipped), value
>>>> calculated using timer frequency.. 4399.98 BogoMIPS (lpj=8799976)
>>>>
>>>> /var/log/dmesg:[ 0.121190] smpboot: Total of 4 processors activated
>>>> (17599.95 BogoMIPS)
>>>>
>>>>
>>>>
>>>> So I suppose that’s a pretty hot machine.)
>>>>
>>>>
>>>>
>>>> On the OTHER hand, look at this machine, which runs pretty much as well
>>>> as everything ELSE here I’ve mentioned:
>>>>
>>>>
>>>>
>>>> top - 16:45:51 up 51 days, 23:59, 28 users, load average: 4.79, 4.46,
>>>> 4.51
>>>>
>>>> Tasks: 335 total, 1 running, 330 sleeping, 0 stopped, 4 zombie
>>>>
>>>> %Cpu(s): 70.4 us, 0.8 sy, 0.0 ni, 28.6 id, 0.0 wa, 0.0 hi, 0.1
>>>> si, 0.0 st
>>>>
>>>> KiB Mem: 8159892 total, 7781364 used, 378528 free, 290460 buffers
>>>>
>>>> KiB Swap: 2086908 total, 0 used, 2086908 free, 5508492 cached
>>>>
>>>>
>>>>
>>>> /var/log/dmesg:[ 0.000001] Calibrating delay loop (skipped), value
>>>> calculated using timer frequency.. 5985.88 BogoMIPS (lpj=11971768)
>>>>
>>>> /var/log/dmesg:[ 0.074024] smpboot: Total of 2 processors activated
>>>> (11971.76 BogoMIPS)
>>>>
>>>>
>>>>
>>>> Again, fast cpu, but then I’ve got 4 processor-bound applications
>>>> running all the time on it so its at a load average of 4.79. I’ve
>>>> remembered that the important numbers come from:
>>>>
>>>>
>>>>
>>>> %Cpu(s): 70.4 us, 0.8 sy, 0.0 ni, 28.6 id, 0.0 wa, 0.0 hi, 0.1
>>>> si, 0.0 st
>>>>
>>>>
>>>>
>>>> If that said:
>>>>
>>>>
>>>>
>>>> %Cpu(s): 70.4 us, 0.8 sy, 0.0 ni, 0.6 id, 26.0 wa, 0.0 hi, 0.1
>>>> si, 0.0 st
>>>>
>>>>
>>>>
>>>> You’d have something of a slow machine. If it said:
>>>>
>>>>
>>>>
>>>> %Cpu(s): 20.4 us, 0.8 sy, 0.0 ni, 8.6 id, 70.0 wa, 0.0 hi, 0.1
>>>> si, 0.0 st
>>>>
>>>>
>>>>
>>>> Youd be going to lunch while waiting for it to finish whatever you were
>>>> doing, if I remember the numbers right.
>>>>
>>>>
>>>>
>>>> IMHO, YMMV, etc, etc J
>>>>
>>>>
>>>>
>>>> I look forward to hearing what Mike discovers.
>>>>
>>>>
>>>>
>>>> *From:* plug-discuss-bounces at lists.phxlinux.org [mailto:
>>>> plug-discuss-bounces at lists.phxlinux.org] *On Behalf Of *Mark Phillips
>>>> *Sent:* Thursday, October 09, 2014 4:36 PM
>>>> *To:* Main PLUG discussion list
>>>> *Subject:* Re: memory
>>>>
>>>>
>>>>
>>>> Mike,
>>>>
>>>> On page 91 of the Dell Dimension C521 that I sent to you, you can use
>>>> memory sticks at 533 MHz, 667 MHz, and 800 MHz. Since the original ones are
>>>> 800 MHz, you did the right thing by changing your order from 533 MHz to 800
>>>> MHz.
>>>>
>>>>
>>>>
>>>> Bottom line...unless you were doing a lot of RAM intensive computations
>>>> on this machine, you won't see a lot of performance improvement for your
>>>> investment of $50 in the memory.
>>>>
>>>> Mark
>>>>
>>>>
>>>>
>>>> On Thu, Oct 9, 2014 at 2:06 PM, Michael Havens <bmike1 at gmail.com>
>>>> wrote:
>>>>
>>>> I emailed the company I bought the ram from and they said they would
>>>> send the 800 Mhz instead of the chips advertised. If that happens I don't
>>>> know. If it does not happen should I get the matching 533Mhz ram or can I
>>>> have the mismatching speeds (will it default the the slower speed)?
>>>>
>>>>
>>>> :-)~MIKE~(-:
>>>>
>>>>
>>>>
>>>> On Thu, Oct 9, 2014 at 12:41 PM, <techlists at phpcoderusa.com> wrote:
>>>>
>>>>
>>>>
>>>> I did a search on "CPU family 15 Model 79 Stepping 2" and this is what
>>>> I found.
>>>>
>>>>
>>>> http://www.cpu-world.com/CPUs/K8/AMD-Sempron%2064%203400%2B%20-%20SDA3400IAA3CN%20%28SDA3400CNBOX%29.html
>>>>
>>>> And here is the benchmark I found
>>>> http://www.cpubenchmark.net/cpu.php?cpu=AMD+Sempron+3400%2B
>>>>
>>>> I would say at least in part the cause of your computer being slow is
>>>> the CPU.
>>>>
>>>> I'd be interested to hear if more RAM makes a difference. Of course
>>>> RAM might effect performance if you are doing something that requires a lot
>>>> of RAM. I assume more RAM will effect compile speed.
>>>>
>>>> This is a testament to Linux breathing life into old iron.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 2014-10-09 14:03, Michael Havens wrote:
>>>>
>>>> bmike1 at C521 ~ $ lscpu
>>>> Architecture: x86_64
>>>> CPU op-mode(s): 32-bit, 64-bit
>>>> Byte Order: Little Endian
>>>> CPU(s): 1
>>>> On-line CPU(s) list: 0
>>>> Thread(s) per core: 1
>>>> Core(s) per socket: 1
>>>> Socket(s): 1
>>>> NUMA node(s): 1
>>>> Vendor ID: AuthenticAMD
>>>> CPU family: 15
>>>> Model: 79
>>>> Stepping: 2
>>>> CPU MHz: 1000.000
>>>> BogoMIPS: 2004.24
>>>> Virtualization: AMD-V
>>>> L1d cache: 64K
>>>> L1i cache: 64K
>>>> L2 cache: 512K
>>>> NUMA node0 CPU(s): 0
>>>>
>>>> :-)~MIKE~(-:
>>>>
>>>> On Thu, Oct 9, 2014 at 10:04 AM, <techlists at phpcoderusa.com> wrote:
>>>>
>>>> what CPU does that box have?
>>>>
>>>> On 2014-10-09 09:36, Mark Phillips wrote:
>>>> Michael,
>>>>
>>>> It seems the max memory is 4GB for that system - 4 banks of 1 GB
>>>> sticks.
>>>> RAM memory Capacity - 4 GB
>>>> Memory Type - DDR2 SDRAM - DIMM 240-pin
>>>> Data Integrity Check - Non-ECC
>>>> Speed - 667 MHz ( PC2-5300 )
>>>> Features - Dual rank , unbuffered
>>>>
>>>> You already have 2 1GB sticks in the machines - what speed are
>>>> they?
>>>> You should match the speed for all four sticks.
>>>>
>>>> The second set you mentioned are only 533 MHz, whereas your bus is
>>>> 667
>>>> MHz. If your system is slow, get the fastest memory you can afford.
>>>>
>>>> Mark
>>>>
>>>> On Wed, Oct 8, 2014 at 1:51 PM, Carruth, Rusty <Rusty at smartm.com>
>>>> wrote:
>>>>
>>>> Yes, 1024 is one gig, but often some memory is stolen by the
>>>> motherboard – for example if you have an on-board graphics card
>>>> that uses main memory for its RAM.
>>>>
>>>>
>>>>
>>>> Personally, if you can afford it and the 4G is less than 2x the 2G
>>>> I’d get 4G – but if you could find 2x2G sticks then you could
>>>> have 6G total – not bad IMHO.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> FROM: plug-discuss-bounces at lists.phxlinux.org
>>>> [mailto:plug-discuss-bounces at lists.phxlinux.org] ON BEHALF OF
>>>> Michael Havens
>>>> SENT: Wednesday, October 08, 2014 1:43 PM
>>>> TO: PLUG
>>>> SUBJECT: memory
>>>>
>>>>
>>>>
>>>> I know this is a stupid question but...
>>>>
>>>>
>>>>
>>>> I got a Dell dimension c521. It is slow so I figure I should add
>>>> memory. There are 4 memory slots with 2 being used. How much memory
>>>> is that? Well, the cards that are in there say it they are two
>>>> cards with 1024 mb apiece. 'free -h' reports
>>>>
>>>>
>>>>
>>>> free -h
>>>>
>>>> total used free
>>>>
>>>> shared buffers cached
>>>>
>>>> Mem: 1.9G 1.4G 489M 18M
>>>> 59M 535M
>>>>
>>>>
>>>>
>>>> isn't 1024 one gig? Where is the rest?
>>>>
>>>>
>>>>
>>>> SHould I buy this?
>>>>
>>>>
>>>>
>>>> NEW 4GB 4X1GB DDR2 PC2-5300 667MHZ RAM MEMORY FOR DELL DIMENSION
>>>> C521 [1]
>>>>
>>>>
>>>>
>>>> or should I get this?
>>>>
>>>>
>>>>
>>>> 2GB (2X1GB) RAM MEMORY CMS COMPATIBLE WITH DELL DIMENSION C521
>>>> DESKTOP [2]
>>>>
>>>> :-)~MIKE~(-:
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>>>>
>>>> Links:
>>>> ------
>>>> [1]
>>>>
>>>>
>>>> http://www.amazon.com/4x1GB-PC2-5300-667MHz-Memory-Dimension/dp/B00KFND9SC/ref=sr_1_1?s=electronics&ie=UTF8&qid=1412798813&sr=1-1&keywords=dimension+c521+memory
>>>>
>>>> [2]
>>>> [2]
>>>>
>>>>
>>>> http://www.amazon.com/Compatible-Dell-Dimension-C521-Desktop/dp/B00BL30RZS/ref=sr_1_3?s=electronics&ie=UTF8&qid=1412798813&sr=1-3&keywords=dimension+c521+memory
>>>>
>>>> [3]
>>>> [3] http://lists.phxlinux.org/mailman/listinfo/plug-discuss [1]
>>>>
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>>>> Links:
>>>> ------
>>>> [1] http://lists.phxlinux.org/mailman/listinfo/plug-discuss
>>>> [2]
>>>>
>>>> http://www.amazon.com/4x1GB-PC2-5300-667MHz-Memory-Dimension/dp/B00KFND9SC/ref=sr_1_1?s=electronics&ie=UTF8&qid=1412798813&sr=1-1&keywords=dimension+c521+memory
>>>> [3]
>>>>
>>>> http://www.amazon.com/Compatible-Dell-Dimension-C521-Desktop/dp/B00BL30RZS/ref=sr_1_3?s=electronics&ie=UTF8&qid=1412798813&sr=1-3&keywords=dimension+c521+memory
>>>>
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