mutt configuration - ~/.muttrc

set realname="David Pasek"

# IMAP

set imap_user = 'david.pasek@gmail.com'

set imap_pass = 'Alicka4me..'

set folder = imaps://imap.gmail.com/

set spoolfile = +INBOX

set record = "+[Gmail]/Sent Mail"

set postponed = "+[Gmail]/Drafts"

# SMTP

set smtp_authenticators = 'gssapi:login'

set smtp_url = 'smtps://david.pasek@smtp.gmail.com'

#set smtp_url = 'smtp://david.pasek@smtp.gmail.com:587/'

set smtp_pass = 'Alicka4me..'

set record=""

# SORT

set sort = reverse-date-received

# KEYS

# imap-fetch-mail  

#macro compose I 'imap-fetch-mail'

# COLORS

color normal  white black

color attachment brightyellow black

color hdrdefault cyan black

color indicator black cyan

color markers brightred black

color quoted  green black

color signature cyan black

color status  brightgreen blue

color tilde blue black

color tree  red black

color index red black ~D

color index magenta black ~T

SIOC Normalizovana latence a velikost IO

Nasel jsem to tady

https://opengrok.eng.vmware.com/source/xref/esx60-hp4.perforce/bora/apps/storageRM/scsi.cpp

   /* COMPUTE IO size and adjust avgLatency accordingly */

   1326    latStats->blocksRead = overall_stats.blocksRead - priv->prevBlocksRead;

   1327    latStats->blocksWritten = overall_stats.blocksWritten - priv->prevBlocksWritten;

   1328    totalblocks = latStats->blocksRead + latStats->blocksWritten;

   1329 

   1330    priv->prevBlocksRead = overall_stats.blocksRead;

   1331    priv->prevBlocksWritten = overall_stats.blocksWritten;

   1332    avgIOSize = (totalblocks * pd->blkSize) / latStats->ioCount;

   1333    if (avgIOSize > 1024) {

   1334       // compute size in KB, blkSize is in Bytes

   1335       avgIOSize = avgIOSize / 1024;

   1336    } else {

   1337       // Assume 1 KB as minimum

   1338       avgIOSize = 1;

   1339    }

   1340 

   1341    /* adjust latency based on avg IO size */

   1342    latStats->avgLatency /= (1.0 + (avgIOSize / IOSIZE_ADJUST));

IOSIZE_ADJUST je 512

Viz. https://opengrok.eng.vmware.com/source/xref/esx60-hp4.perforce/bora/apps/storageRM/rateControlShared.h#IOSIZE_ADJUST

avgIOSize je v KB

Takze latence treba pro I/O o velikosti 128kB by bylo adjustovano na namerenou latency vydelenou 1+(128/512), takze by se latence vydelila 1.25, takze by se latence snizila o 20%.

U I/O o velikosti 1024kB by to se latence delila 1+(1024/512), takze cislem 3 a tam by se latence snizila na 33%.

Takze je to jinak, nez jsem nekde cetl, a mozna proto to ten nekdo (myslim, ze Frank Denneman) dal pryc ;-)

A dalsi vec je, ze to mohlo byt jinak v ESXi 4 a ted je to takto v ESXi 6. Jeste jsem koukal, ze je to takto I v ESXi 5, ale zdrojaky ESXi 4 uz tam nejsou.

SIOC v ESXi 5 bylo oproti ESX 4.1 vyrazne vylepseno. Ve 4.1 bylo SIOC uvedeno poprve.

Kazdopadne tam probiha urcity adjustment v zavislosti na velikosti I/O.