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| author | Yun-Chih Chen <yunchih@csie.ntu.edu.tw> | 2018-04-21 16:14:38 +0800 |
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| committer | Yunchih Chen <yunchih.cat@gmail.com> | 2019-03-07 15:02:17 +0800 |
| commit | af48bcec8be1f4b0cc55ce47bd6eb7c7d977f4d1 (patch) | |
| tree | c513ea284684cb824ff385fea2f92c122d820e52 | |
| parent | f7074d5b66ab1872f3735eda1736e65c5cf40bc3 (diff) | |
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Update README.md
Elaborate on usage of storage_size flag
| -rw-r--r-- | README.md | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -12,7 +12,13 @@ A full *trunk* will be committed to disk by configurable means (currently `zstd` compression and no compression is implemented). Trunks will be stored in a specific directory, which will be scanned by `nfextract` to extract all trunks. -Due to communication with the kernel, **this program requires root privilege**. +* Due to communication with the kernel, **this program requires root privilege**. +* The maximum size of raw collection is configured by `storage_size`. When we + received that many packets, further packets will overwrite starting from the + begining, mimicing a rotation-based storage. Unfortunately, if compression is + enabled, the reduced size will not be reflected because currently we calculate + size only in term of raw size. Thus, user has to manually scale `storage_size` by + compression ratio of their workload. ## Dependencies Installation |