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System-wide disk I/O counters

Source: R/disk.R
ps_disk_io_counters.Rd

Returns a data.frame of system-wide disk I/O counters.

Usage

ps_disk_io_counters()

Value

A data frame of one row per disk of I/O stats, with columns name, read_count read_merged_count read_bytes, read_time, write_count, write_merged_count, write_bytes write_time, and busy_time.

Details

Includes the following non-NA fields for all supported platforms:

  • read_count: number of reads

  • write_count: number of writes

  • read_bytes: number of bytes read

  • write_bytes: number of bytes written

And for only some platforms:

  • read_time: time spent reading from disk (in milliseconds)

  • write_time: time spent writing to disk (in milliseconds)

  • busy_time: time spent doing actual I/Os (in milliseconds)

  • read_merged_count: number of merged reads (see iostats doc)

  • write_merged_count: number of merged writes (see iostats doc)

See also

Other disk functions: ps_disk_partitions(), ps_disk_usage()

Examples

ps_disk_io_counters()
#> # A data frame: 14 × 10
#>    name  read_count read_merged_count read_bytes read_time write_count
#>    <chr>      <dbl>             <dbl>      <dbl>     <dbl>       <dbl>
#>  1 loop0          0              4738      13824         0           0
#>  2 loop1          0              2208       4608         0           0
#>  3 loop2          0               740       1536         0           0
#>  4 loop3          0                28          0         0           0
#>  5 loop4          0                 0          0         0           0
#>  6 loop5          0                 0          0         0           0
#>  7 loop6          0                 0          0         0           0
#>  8 loop7          0                 0          0         0           0
#>  9 sdb        19635           1983685    3086336     26904       71876
#> 10 sdb1       18969           1965567    3067904     26902       71876
#> 11 sdb14          0               976       3584         0           0
#> 12 sdb15        666             15174      10752         2           0
#> 13 sda            0             25786      55296      1795        1252
#> 14 sda1           0              6834      30208      1795        1252
#> # ℹ 4 more variables: write_merged_count <dbl>, write_bytes <dbl>,
#> #   write_time <dbl>, busy_time <dbl>