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Especially random IO on small files will be accelerated up to 200% using FastIO on Lise or IME on Emmy.

INTERNAL - not public - will be deleted

Recommendation Matrix:

Max performance gain on IO versus default $WORK in brackets.

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FastIO stripe=4       (+200%) or

$WORK stripe=4-8 (+200%)

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FastIO stripe=4       (+80%)

$WORK stripe=4-8  (+70%)

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FastIO stripe=4         (+120%)

$WORK stripe=MAX (+90%)

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FastIO stripe=4         (+200%) or

$WORK stripe=MAX (+150%)

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FastIO stripe=4         (+100%)

FastIO                        (+50%)

Commands

Striping einrichten

mkdir <dirname>

lfs setstripe -c <count> <dirname>

DoM einrichten

mkdir <dirname>

lfs setstripe -E 64K -L mdt -E -1 -p work.rotational <dirname>

FastIO einrichten

mkdir <dirname>

lfs setstripe -p flash <dirname>

Fastio mit Striping 4 einrichten:

mkdir <dirname>

lfs setstripe -p flash -c 4 <dirname>

Prüfen

lfs getstripe <dirname>

Vorschlag Ankündigung

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