我一對 wd green 3T raid1 7x24 動物機 bt 左幾年都重好地地。

話用 SSD BT 的人太離地。 ...
Miipp 發表於 2020-3-30 18:58


有咩咁離地?  唔少人用緊啦......

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有咩咁離地?  唔少人用緊啦......
Kin_2012 發表於 2020-3-30 19:35


就好似買架 RR 去做烏巴咁囉

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BT 果 D random write 黎
可能 1~4MB
doggiestyle 發表於 2020-3-30 18:13

而家啲 BT 軟件全部都用 RAM 做 Cache
只要夠多 RAM 做 Cache 就得

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而家啲 BT 軟件全部都用 RAM 做 Cache
只要夠多 RAM 做 Cache 就得
harryytm 發表於 2020-3-31 00:49



而家果 D 係指邊 D 可唔可以舉一兩隻出黎做例子
我見過兩隻軟件都係用 PIECE SIZE黎做寫入單位
就算比好多RAM佢, 大部份都係用晒黎做 READ CACHE
WRTIE CACHE 就算佢留左幾百 MB 先寫入
因為基本上都唔會係相鄰既 BLOCK
所以其實都係 RANDOM WRITE

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其實最怕係啲唔湯唔水嘅bt檔 好似有啲去到七成就停咗喺度 佔用咗不少 硬碟閒置空間 我就係怕ssd買得太過少容易迫爆

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用Ramdrive down完再抄去Harddisk
oneofthem 發表於 2020-3-30 17:05



    如果downloading時當機, 咪要download過囉.

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本帖最後由 harryytm 於 2020-3-31 17:57 編輯
而家果 D 係指邊 D  可唔可以舉一兩隻出黎做例子
我見過兩隻軟件都係用 PIECE SIZE黎做寫入單位
...
doggiestyle 發表於 2020-3-31 01:51


qBittorrent 下載完成嘅 Piece 除咗由 Write Cache 寫落碟仲會保留喺 Read Cache
部份隨機寫入會比 Windows 個 Write-Cache 合拼
同埋會
Cache Set 得夠多嘅話下載緊嘅時候
大部份磁碟讀取都比 Read Cache 同 Windows 個 SuperPrefetch 頂咗

另外 qBittorrent 進階進項入面有啲設定可以進一步減少讀寫
Coalesce reads & writes - 合拼連續嘅讀寫減少交比 OS 嘅讀寫要求
Use piece extend affinity - piece size 太細嘅種會下載相鄰 4 MiB 嘅 pieces 去減少隨機寫入
Send upload piece suggestions - 建議其他 Peer 先下載 Read Cache 入面最新 Cache 咗嘅 Piece

nametypedefault
coalesce_readsboolfalse
coalesce_writesboolfalse
allocate separate, contiguous, buffers for read and write calls. Only used where writev/readv cannot be used will use more RAM but may improve performance

nametypedefault
piece_extent_affinityboolfalse
when this is true, create an affinity for downloading 4 MiB extents of adjacent pieces. This is an attempt to achieve better disk I/O throughput by downloading larger extents of bytes, for torrents with small piece sizes

nametypedefault
suggest_modeintsettings_pack::no_piece_suggestions
suggest_mode controls whether or not libtorrent will send out suggest messages to create a bias of its peers to request certain pieces. The modes are:
  • no_piece_suggestions which will not send out suggest messages.
  • suggest_read_cache which will send out suggest messages for the most recent pieces that are in the read cache.

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而家果 D 係指邊 D  可唔可以舉一兩隻出黎做例子
我見過兩隻軟件都係用 PIECE SIZE黎做寫入單位
...
doggiestyle 發表於 2020-3-31 01:51



    用bitcomet X64...支持超大快取...只要RAM夠大就可以做0硬碟讀取(重新打開任務唔計....

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用bitcomet X64...支持超大快取...只要RAM夠大就可以做0硬碟讀取(重新打開任務唔計.... ...
樹下乘涼 發表於 2020-3-31 16:44

qBittorrent 都係

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qBittorrent 都係
harryytm 發表於 2020-3-31 16:54



    qBittorrent 只能說..連通性....好差.......

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