Support Board
Date/Time: Mon, 03 Mar 2025 21:32:28 +0000
Deleting .scid files did not free space on windows.
View Count: 826
| [2021-11-12 09:02:59] |
| NotIll - Posts: 118 |
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Hello SC team, I am experiencing a pretty troublesome problem. I know this could or could not have to do anything with your software(it did however not happen with other files in other maps). But I was hoping that you or anyone else cuold help me with this. I had deleted more then 20 GB's of .scid data this morning, I emptied the trash can also. But it did not clear any space on the disk. I had 17 gigs of free space on the disk. I deleted more then 20gigs, and after this I still had 17 gigs. As a test because I could not believe it really I deleted some random video files from another folder in windows, this did free the correct space up. After this I deleted another GB of .scid, and the same thing happend. I am trying to understand the problem at this point, seeing if theres a fix to this problem. As it stands I only know that deleting large files twice that were .scids in my SC folder had troubles, whilst a test on the same disk with another file did not. Help with be trully appreciated Update: -I did an error check for the disk and it found no troubles. -Also went to the hidden $RECYCLE.BIN on the disk which was empty -chkdsk did not help either -refragmentation did not help. Date Time Of Last Edit: 2021-11-12 09:56:53
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| [2021-11-12 13:24:02] |
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It does not make sense to us. There should be a corresponding reduction in space.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-11-12 13:39:25] |
| NotIll - Posts: 118 |
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Yes good sir. Thats exactly what I would expect. At this point I am lost. I have depleted a rather big set of possibilities. The SC depth files had no troubles if I remember correctly. If you will would you look into this issue generally on windows so you could perhaps understand how this could in my case specifically happen only with .scid files. Which is extremely puzzling to me. |
| [2021-11-12 14:23:11] |
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Deleting market depth data files will reduce used space further. You can delete older ones. If we were to delete Sierra Chart Intraday data files, certainly the space used going to be reduced. This is with certainty. Another thing you need to understand is that these files are compressed. So the amount used space reduced is going to be by the compressed size. Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2021-11-12 14:24:54
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| [2021-11-12 14:49:50] |
| NotIll - Posts: 118 |
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Do i understand it correctly that if per example a .scid file shows to be say 2gb's in windows that only say 1gb would be made free on the disk after deleting?
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| [2021-11-12 15:03:04] |
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Even less than that. About one third.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2021-11-12 15:28:19] |
| NotIll - Posts: 118 |
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Is there any documentation about this specifically? Why would you show it to be larger then it is on the drive? I mean perhaps to show how cool it is that your compression works wonders. I could understand that. But could you please just make it appear what it is for the system? |
| [2021-11-12 15:46:32] |
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Not from us. You need to consult Microsoft documentation. At this point your questions are about the Windows operating system. The compression is from the operating system not from Sierra Chart.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing Date Time Of Last Edit: 2021-11-12 15:46:41
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| [2021-11-13 19:32:23] |
| ForgivingComputers.com - Posts: 1021 |
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Why would you show it to be larger then it is on the drive?
If you right-click on the SCID file in File Explorer and select Properties, on the General tab you should see two sizes: Size and Size on Disk. If you click on Advanced, you will see a check next to Compress contents to save disk space. |
| [2021-11-15 12:41:43] |
| NotIll - Posts: 118 |
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Cheers Bradh, Does this have any influence regarding the usage in SC of this file once its compressed? |
| [2021-11-15 13:08:54] |
| ForgivingComputers.com - Posts: 1021 |
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Does this have any influence regarding the usage in SC of this file once its compressed?
Since the file is compressed at the OS level, there is some amount of overhead required to decompress it when the chart is loaded/reloaded. There is also compression happening as new data is added over time. SC performance impact is likely minimal. |
| [2021-11-15 13:12:50] |
| NotIll - Posts: 118 |
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Thank you again. Would this make sc usage faster or slower overall? Be it due to a faster OS thanks to smaller files in ram or slower due to added calculations. Or in other words is the only benefit reduced storage needs? |
| [2021-11-15 13:45:41] |
| ForgivingComputers.com - Posts: 1021 |
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Since the decompression occurs only when loading a chart, you shouldn't see any difference during regular use of Sierra Chart. Hard to say if the background compression will have an ongoing perceived impact, since it may be on a different thread. If you delete all SCID files and a bunch of new ones are downloaded, I have seen times when the OS decides to start compressing many large files at once, and that can impact overall performance temporarily. Since SSDs are fast, but not cheap, the benefit in disk space savings seems worth it.
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