Apr 29, 2013 · Technical: Hadoop – HBase – Compression – lzo Introduction Unfortunately, HBase cannot ship with LZO because of the licensing issues; HBase is Apache-licensed, LZO is GPL. Therefo…
Aug 16, 2016 · The clearest takeaway is that LZO compression is the most performant at every scale factor we tested. The LZO — or Lempel-Ziv-Oberhumer — algorithm was designed specifically to optimize for fast decompression, so this result is not too surprising, and helps to validate the idea that we are primarily CPU-bound when COPYing compressed data. Mar 28, 2004 · Lzop: compress or expand files. Version. 1.01. Description. lzop is a file compressor which is very similar to gzip. lzop uses the LZO data compression library for compression services, and its main advantages over gzip are much higher compression and decompression speed (at the cost of some compression ratio). This compression algorithm maintains its dictionary within the data themselves. Suppose you want to compress the following string of text: the quick brown fox jumps over the lazy dog. The word ‘the’ occurs twice in the file so the data can be compressed like this: the quick brown fox jumps over << lazy dog. in which << is a pointer to the LZO is an algorithm that de/compresses data. It is tuned for speed (especially decompression speed) and trades the size of the compressed file for it to some degree. There are variants with slow compression (yet still very fast decompression) available though. Sep 30, 2019 · This section describes Intel IPP data compression functions, that implement the LZO (Lempel-Ziv-Oberhumer) compressed data format. This format and algorithm use 64KB compression dictionary and do not require additional memory for decompression. Apr 29, 2013 · Technical: Hadoop – HBase – Compression – lzo Introduction Unfortunately, HBase cannot ship with LZO because of the licensing issues; HBase is Apache-licensed, LZO is GPL. Therefo… Performance and compression ratio. This algorithm is more than 10 times faster than standard zip compression , almost independently of a compression level used (1-9 and even 0 – no compression). The speed is the same as LZO , the worlds fastest compression algorithm. Text is usually compressed to 60% of its original size.
This compression algorithm maintains its dictionary within the data themselves. Suppose you want to compress the following string of text: the quick brown fox jumps over the lazy dog. The word ‘the’ occurs twice in the file so the data can be compressed like this: the quick brown fox jumps over << lazy dog. in which << is a pointer to the
Jan 18, 2019 · Depending on the used algorithm, mere loading the module could reduce your effective tun-mtu size by 1. Traditionally, OpenVPN used lzo as compression algorithm but recently (OpenVPN v2.4 and above), lz4-v2 (which itself is the successor of lz4), has replaced it. Below, I will briefly cover each compression methods: lzo LZ4 is lossless compression algorithm, providing compression speed > 500 MB/s per core (>0.15 Bytes/cycle). It features an extremely fast decoder, with speed in multiple GB/s per core (~1 Byte/cycle). A high compression derivative, called LZ4_HC, is available, trading customizable CPU time for compression ratio. The LZW algorithm is a very common compression technique. This algorithm is typically used in GIF and optionally in PDF and TIFF. Unix’s ‘compress’ command, among other uses. It is lossless, meaning no data is lost when compressing. The algorithm is simple to implement and has the potential for very high throughput in hardware
Performance and compression ratio. This algorithm is more than 10 times faster than standard zip compression , almost independently of a compression level used (1-9 and even 0 – no compression). The speed is the same as LZO , the worlds fastest compression algorithm. Text is usually compressed to 60% of its original size.
Performance and compression ratio. This algorithm is more than 10 times faster than standard zip compression , almost independently of a compression level used (1-9 and even 0 – no compression). The speed is the same as LZO , the worlds fastest compression algorithm. Text is usually compressed to 60% of its original size. Jun 27, 2014 · Lempel-Ziv-Oberhumer (LZO) was developed in 1994 by Markus Oberhumer and currently it is one of the most popular and widespread compression algorithm used in the Linux kernel , some Samsung Android mobile devices, other embedded devices and several open-source libraries including OpenVPN, MPlayer2, Libav, FFmpeg. It appears to be LZO, which I think is the default algorithm for BTRFS.. Running the following on a new test share (a subvolume) reveals LZO on a current DS1515+: adminuser@ds1515plus:/# btrfs property get /volume2/Test ro=false compression=lzo