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 . :-)~MIKE~(-: On Thu, Oct 9, 2014 at 7:49 PM, Mark Phillips 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 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@lists.phxlinux.org [mailto: >> plug-discuss-bounces@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 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, 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@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, 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 >> 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@lists.phxlinux.org >> [mailto:plug-discuss-bounces@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~(-: >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >> >> http://lists.phxlinux.org/mailman/listinfo/plug-discuss [1] [3] >> >> 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] >> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.phxlinux.org/mailman/listinfo/plug-discuss [1] >> >> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.phxlinux.org/mailman/listinfo/plug-discuss [1] >> >> >> 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 >> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.phxlinux.org/mailman/listinfo/plug-discuss >> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.phxlinux.org/mailman/listinfo/plug-discuss >> >> >> >> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.phxlinux.org/mailman/listinfo/plug-discuss >> >> >> >> --------------------------------------------------- >> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org >> To subscribe, unsubscribe, or to change your mail settings: >> http://lists.phxlinux.org/mailman/listinfo/plug-discuss >> > > > --------------------------------------------------- > PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org > To subscribe, unsubscribe, or to change your mail settings: > http://lists.phxlinux.org/mailman/listinfo/plug-discuss >