X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsystemd-readahead-replay.service.xml;fp=man%2Fsystemd-readahead-replay.service.xml;h=806d46093b28c6b5c7253204d687548b477808f2;hp=a00f7e589b2a288e5dda1c0bf6f991e8a67da9bc;hb=e9dd9f9547350c7dc0473583b5c2228dc8f0ab76;hpb=6824690f140f45064157d220a24b9afbeb1d093f diff --git a/man/systemd-readahead-replay.service.xml b/man/systemd-readahead-replay.service.xml index a00f7e589..806d46093 100644 --- a/man/systemd-readahead-replay.service.xml +++ b/man/systemd-readahead-replay.service.xml @@ -72,7 +72,7 @@ time. systemd-readahead-replay.service is a service that replays this access data collected at the subsequent boot. Since disks tend to be - magnitudes slower than RAM this is intended to improve + magnitudes slower than RAM, this is intended to improve boot speeds by pre-loading early at boot all data on disk that is known to be read for the complete boot process. @@ -80,9 +80,9 @@ systemd-readahead-done.service is executed a short while after boot completed and signals systemd-readahead-collect.service - to end data collection. On this signal this service + to end data collection. On this signal, this service will then sort the collected disk accesses and store - information about them disk in + information about them in /.readahead. Normally, both @@ -92,17 +92,17 @@ are activated at boot so that access patterns from the preceding boot are replayed and new data collected for the subsequent boot. However, on read-only media - where the collected data cannot be stored it might + where the collected data cannot be stored, it might be a good idea to disable systemd-readahead-collect.service. On rotating media, when replaying disk accesses - at early boot + at early boot, systemd-readahead-replay.service will order read requests by their location on disk. On non-rotating media, they will be ordered by their original access timestamp. If the file system supports - it + it, systemd-readahead-collect.service will also defragment and rearrange files on disk to optimize subsequent boot times. @@ -136,7 +136,7 @@ Maximum size of files - (in bytes) to read ahead. Only valid + in bytes to read ahead. Only valid for the collect and replay commands. @@ -145,8 +145,8 @@ - Maximum time (in usec) - to to spend collecting data. Only valid + Maximum time in microseconds + to spend collecting data. Only valid for the collect command. @@ -164,7 +164,7 @@ [DIRECTORY] Collect read-ahead data on - early boot. When terminating it will + early boot. When terminating, it will write out a pack file to the indicated directory containing the read-ahead data. @@ -186,9 +186,9 @@ Dumps the content of the read-ahead pack file to the - terminal. The output lists - approximately for each file - how much will be read-ahead by + terminal. For each file, the + output lists approximately how + much will be read ahead by the replay command.