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andersenandClaude Fable 5
6d398b826a
- restructure boot/kickstarts/scripts/docs into homelab/ - docs: alma9->10 breaking changes, CIS hardening, kickstart changes - add find_cron_entries.sh helper and codex running memory notes Co-Authored-By: Claude Fable 5 <[email protected]>
30 lines
908 B
Bash
30 lines
908 B
Bash
MAXCON=512 # Max Connections
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RSB=0.25 # Amount of RAM for Shared Buffers
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RS=0.04 # Amount of RAM for Sort
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PS=16 # Page Size
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DPS=8192 # Disk Page Size (Bytes)
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KB=1024
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eval $(grep MemTotal /proc/meminfo | awk '{ print "MEM="$2 "; UNT=" toupper($3) }')
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if [ -n "$MEM" -a -n "$UNT" ]; then
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if [ "$UNT" == "KB" ]; then
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MEM=$(($MEM * $KB))
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else
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echo "Fix for $UNT"
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fi
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SBCACHE=$(echo "$MEM * $RSB" | bc -q) # Shared Buffer Cache
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SBUFF=$(echo "scale=4; $SBCACHE / $DPS" | bc -q) # Number of Shared Buffers
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SHMMAX=$(echo "((250+(8.2 * $SBUFF)+(14.2 * $MAXCON)) * $KB) / 1" | bc -q);
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SHMALL=$(echo "$SHMMAX / $PS" | bc -q)
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echo \# postgres shared memory tweak
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echo \# Memeory = $MEM
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echo \# Max Connections = $MAXCON
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echo kernel.shmall = $SHMALL
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echo kernel.shmmax = $SHMMAX
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else
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echo # Could not find total memeory
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fi
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