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I am writing about 50GB a day on my personal workstation, over 2x256GB in a R0. This is calculated by looking at system up time and total writes.
I do all my heavy lifting on network drives, such as storing daily images, music, movies, etc. So for me the number represents just typical usage (trading, email, browsing, running small business).
Thanks Mike, I only have 4GB of RAM on the notebook (and it's one of those new-fangled ones you can't drop another chip into). Is it possible / worthwhile to have a chunk of it devoted to a such a cache?
That's interesting, thanks. I'd come across a number of references to SSD performance degeneration and endurance, where people seemed to think constant writing was something to be avoided. But I suppose compared to video and photo editing, trading data doesn't add up to anything much.
Platform: "I trade, therefore, I AM!"; Theme Song: "Atomic Dog!"
Trading: EMD, 6J, ZB
Posts: 795 since Oct 2009
@mike
so in lieu of the entire process of establishing a ramdisk, establishing an image for that ramdisk, copying files to initialize that ramdisk, having it start when windows starts, initiating a full dump / write to disk before windows shuts down (which has been said takes minutes or noticable amounts of time), and establishing procedures to backup and possibly restore (other users comments of their various ramdisk software experiences) from.
so in lieu of all the above, you alternately use PrimoCache ( PrimoCache Overview) instead and have reaped similar performance improvements all around.
if so, brilliant!
reason being is, after reading two sets of instructions from both Dataram and SoftPerfect; getting basic questions answered from their tech support, and implementing this solution, then to notice this as a complete alternative (logically I could not see the need to implement both solutions as they would both be competing for the unused RAM), this seems almost too good to be true
thanks for bringing this alternate solution to the fore, as it especially eliminates the shutdown pre-step of making sure you have backups in case of system crashes and losses of data, as well as the write before shutdown phase not working, should that happen. One user said his systems froze and so did his other appplications, so this does happen.
Platform: "I trade, therefore, I AM!"; Theme Song: "Atomic Dog!"
Trading: EMD, 6J, ZB
Posts: 795 since Oct 2009
how?
did you assign the entire ninjatrader 7\db to this cache?, or it simply intercepts any and all accesses to the HDD by managing its own cache space based on some frequency of access?
or did you specify some files to be considered for the smart cache service, and let it handle space issues?
Platform: "I trade, therefore, I AM!"; Theme Song: "Atomic Dog!"
Trading: EMD, 6J, ZB
Posts: 795 since Oct 2009
at this time, only the Beta version is available for usage, not even the standard version, just beneath it. What settings did you choose, that provided such remarked and noticeable improvements?
step1) hit the folder with the green plus to establish a cache on the primary C drive logical NTFS portion, no the smaller system reserve partition
step2) which configuration did you choose? improve read; improve write; custom?
step3) memory overhead read what value? 963.02MB? because its using not any additional memory, just what is remaining up to the 4GB limit (so if you have a 16gb system, its not even offering to use those 12+gb area)
step4) change any preconfigured settings?; change the quota limit max UIM to 960mb? confirm IMM has started?, confirm Level-1 size is 128mb?
just curious, because after doing some HDD file maintenance (cuts / paste, deletes) as well as running Ninja with 6 workspaces the machine never shut down, even after 20+ minutes in the shutdown phase. eventually pressing the power button was the solution
have you been able to assign the "above 4gb" memory to be used, or is this only with a ramcache? (I am beginning to think these are indeed two non-compete methods)