1 2 Previous Next 26 Replies Latest reply on Jun 10, 2011 1:27 AM by koitsu

    Are My Writes Slow?


      In comparing my benchmarks with other I have seen on this forum, I find that my read speeds seem similar to others but my write speeds are lower.  This has been the case since the first benchmark run, right after setting up the new PC, so I'm guessing it's nothing to do with TRIM.  Win 7 64-bit and my driver is msahci.sys, no RAID.  Any thoughts as to why the writes are slower than others have reported?


      as-ssd-bench INTEL SSDSA2M080 26.01.2010 11-04-28.png




        • 1. Re: Are My Writes Slow?

          The 80GB SSD has slower Sequential Writes than a 160GB SSD, just keep that in mind when comparing benchmarks. Having said that, your Sequential Write speed is a bit low, should be 80+ MB/s. Try repeating the test and see what happens. Test results do vary, so let's wait for another test and post back what you get.


          Your other Write speeds look alright, just a tad bit slower than what I get. I have both 80 and 160GB SSD's

          • 2. Re: Are My Writes Slow?

            Running again, my Sequential Write Speed has increased slightly - while some other speeds have fallen very slightly.


            Maybe my SSD is still in training.  


            as-ssd-bench INTEL SSDSA2M080 27.01.2010 09-32-18.png

            • 3. Re: Are My Writes Slow?

              They are faster than mine and my system is fast. I have an AMD 965BE c2, 8 gigs ddr3 ram, MSI 790FX-GD 70 mb with the Intel X25M G2 80gig running my OS -Win7 Pro 64. Your scores are slightly faster. May I suggest that you compare your scores to your old hd and ask is it faster? Wink! What are your computer parts? The scores are very dependant on type of mb, processor etc.

              • 4. Re: Are My Writes Slow?

                Well, your Sequential Wtite speed still looks lower than what I get for my 80GB SSD:


                as-ssd-bench INTEL SSDSA2M080 1.26.2010 10-40-27 PM.png

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                • 5. Re: Are My Writes Slow?

                  I forgot to ask, have you installed the latest firmware update 02HD? Oh, sorry, just looked at your pic and noticed you do have the latest firmware update.

                  • 6. Re: Are My Writes Slow?

                    Here you will see the 160GB SSD has better Sequential Write speed than an 80GB SSD (first 80GB then 160GB):


                    as-ssd-bench INTEL SSDSA2M080 1.26.2010 10-40-27 PM.png

                    as-ssd-bench INTEL SSDSA2M160 1.3.2010 4-16-21 PM.png

                    • 7. Re: Are My Writes Slow?

                      My mb is Asus P7P55D Core i5/i7 carrying 8g DD3 RAM and my processor is Intel Core i7 860 Processor, 2.80GHz Quad Core (overclocked to 3.46GHz for single threaded apps).


                      I'm guessing that the driver may also effect the speeds.  I'm using the msachi.sys driver and I believe that I've read that the Intel drivers are faster.  Is this a possible explanation?

                      • 8. Re: Are My Writes Slow?

                        Do you see the pics I posted above? I am using same driver as you.

                        • 9. Re: Are My Writes Slow?

                          Oh well.  I guess this is just going to be one of those imponderables.  But thanks for all the feedback.

                          • 10. Re: Are My Writes Slow?

                            It is kind of weird, what you get for Sequential Writes. You should have 80+ for sequesntial write speed. Something is not quite right with your setup, but the problem is finding out what it is. What kind of anti-virus and firewall are you using? Are there any "flags" in Device manager? Any issues shown in SMART with SSD Toolbox? I'm just taking shots in the dark here.

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                            • 11. Re: Are My Writes Slow?

                              Antivirus: Microsoft Security Essentials

                              Firewall: Internal Windows Firewall is ON.  Only other Firewall is in my router.

                              No flags in Device Manager.

                              No issues showing up in SMART or in Diagnostic Scans run in Toolbox.


                              Do you think it might be interesting to run Optimizer, even though in theory it isn't necessary as I'm using the M/S driver?  Is it harmful to use Optimizer to TRIM while windows is doing it automatically?

                              • 12. Re: Are My Writes Slow?

                                No, running the optimizer shouldn't cause any problem, so give it a try and post back here.

                                • 13. Re: Are My Writes Slow?

                                  I have almost the same setup, P7P55D Pro, 8 GB, i7 860, Win7 64-bit, msahci driver, MS Security Essentials.  I was getting the expected performance last time I ran the benchmark.


                                  Have you installed anything else that may have added a filter driver to the storage stack: encryption, or something else you can think of?

                                  • 14. Re: Are My Writes Slow?

                                    My PC is new, with a clean Windows 7 install.  The guys who built it ran bench tests before they sent it to me and the same slow write speed showed up in those initial results.


                                    So I figured it probably wasn't related to needing to be trimmed.  But I've just run the Optimizer and hey, presto!  It sure looks like the slow write speed was a TRIM issue.  Now I'm going to keep an eye on it to see whether Windows will keep it in shape with auto trim as it's meant to.


                                    as-ssd-bench INTEL SSDSA2M080 27.01.2010 21-27-19.png

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