svn commit: r306831 - in user/alc/PQ_LAUNDRY/usr.bin: systat vmstat
Mark Johnston
markj at freebsd.org
Fri Oct 7 23:46:38 UTC 2016
On Sat, Oct 08, 2016 at 10:35:59AM +1100, Bruce Evans wrote:
> On Fri, 7 Oct 2016, Mark Johnston wrote:
>
> > Log:
> > Teach vmstat and systat about v_pdshortfalls.
>
> systat has a negative amount of space available for expansion.
Hm, I see. I'll revert the systat modifications then. It isn't
particularly handy to have the rate of shortfall wakeups given what's
already available in the vmstat display.
>
> > Modified: user/alc/PQ_LAUNDRY/usr.bin/systat/vmstat.c
> > ==============================================================================
> > --- user/alc/PQ_LAUNDRY/usr.bin/systat/vmstat.c Fri Oct 7 22:17:25 2016 (r306830)
> > +++ user/alc/PQ_LAUNDRY/usr.bin/systat/vmstat.c Fri Oct 7 22:17:43 2016 (r306831)
> > @@ -339,14 +340,15 @@ labelkre(void)
> > mvprintw(VMSTATROW + 8, VMSTATCOL + 9, "react");
> > mvprintw(VMSTATROW + 9, VMSTATCOL + 9, "pdwak");
> > mvprintw(VMSTATROW + 10, VMSTATCOL + 9, "pdpgs");
> > - mvprintw(VMSTATROW + 11, VMSTATCOL + 9, "intrn");
> > - mvprintw(VMSTATROW + 12, VMSTATCOL + 9, "wire");
> > - mvprintw(VMSTATROW + 13, VMSTATCOL + 9, "act");
> > - mvprintw(VMSTATROW + 14, VMSTATCOL + 9, "inact");
> > - mvprintw(VMSTATROW + 15, VMSTATCOL + 9, "laund");
> > - mvprintw(VMSTATROW + 16, VMSTATCOL + 9, "free");
> > - if (LINES - 1 > VMSTATROW + 17)
> > - mvprintw(VMSTATROW + 17, VMSTATCOL + 9, "buf");
> > + mvprintw(VMSTATROW + 11, VMSTATCOL + 9, "pdshort");
> > + mvprintw(VMSTATROW + 12, VMSTATCOL + 9, "intrn");
> > + mvprintw(VMSTATROW + 13, VMSTATCOL + 9, "wire");
> > + mvprintw(VMSTATROW + 14, VMSTATCOL + 9, "act");
> > + mvprintw(VMSTATROW + 15, VMSTATCOL + 9, "inact");
> > + mvprintw(VMSTATROW + 16, VMSTATCOL + 9, "laund");
> > + mvprintw(VMSTATROW + 17, VMSTATCOL + 9, "free");
> > + if (LINES - 1 > VMSTATROW + 18)
> > + mvprintw(VMSTATROW + 18, VMSTATCOL + 9, "buf");
> >
> > mvprintw(GENSTATROW, GENSTATCOL, " Csw Trp Sys Int Sof Flt");
>
> Already the display of 'buf' was broken by expansion: on freefall now:
>
> 30 users Load 0.21 0.18 0.13 Oct 7 22:32
> Mem usage: 82%Phy 10%Kmem
> Mem: KB REAL VIRTUAL VN PAGER SWAP PAGER
> Tot Share Tot Share Free in out in out
> Act 784512 23764 7319516 42640 4515744 count
> All 893752 129672 7995532 624636 pages
> Proc: Interrupts
> r p d s w Csw Trp Sys Int Sof Flt ioflt 569 total
> 422 3216 49 362 232 33 5 1 cow uart0 4
> 2 zfod 29 cpu0:timer
> 0.3%Sys 0.0%Intr 0.0%User 0.0%Nice 99.7%Idle ozfod 4 igb0:que 0
> | | | | | | | | | | %ozfod 1 igb0:que 1
> daefr 12 igb0:que 2
> 1 dtbuf 93 prcfr 1 igb0:que 3
> Namei Name-cache Dir-cache 485980 desvn 117 totfr 10 igb0:que 4
> Calls hits % hits % 485400 numvn react 1 igb0:que 5
> 17 17 100 179227 frevn pdwak 1 igb0:que 6
> 147 pdpgs 4 igb0:que 7
> Disks da0 da1 da2 da3 da4 da5 da6 intrn igb0:link
> KB/t 20.12 19.75 19.75 20.00 19.62 20.00 0.00 5096864 wire 196 ciss0 274
> tps 31 31 31 31 31 31 0 330628 act 27 cpu1:timer
> MB/s 0.61 0.60 0.60 0.60 0.59 0.60 0.00 14524764 inact 6 cpu18:time
> %busy 15 13 16 16 18 15 0 cache 7 cpu8:timer
> 4515744 free 3 cpu10:time
> 2 cpu16:time
>
> 'buf' is not important, but 'free' is.
>
> The last line is not available for the main display, but is used for the
> cpu16:time<content lost to verbose naming>. This line is used for input,
> so and everything displayed on it is cleared for input and then messed up
> in an uglier way by redisplaying only parts (for the cpu16: field, the
> count is re-displayed on screen refresh but the description is not
> re-displayed without a switch to another screen and back).
>
> The interrupts column and the input line are generally broken. With
> 24 CPUs and also some other per-cpu interrupt counts, it takes about
> a 200-row terminal to display all the interrupts and then 1 more row
> to stop the input line running into the interrupts. The rest of the
> display is tuned for 25 rows and looks strange when it is 7/8 unused.
> Per-CPU interrupts are also miscounted in totals...
>
> Bruce
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