Simplified

Author: bigbruno

CLAUDE.md

@@ -12,6 +12,7 @@ clap = { version = "4", features = ["derive"] }
 nix = { version = "0.29", features = ["fs", "process", "signal", "user", "feature"] }
 libsystemd = "0.7"
 glob = "0.3"
+libc = "0.2"
 signal-hook = "0.3"
 thiserror = "2"
 pathdiff = "0.2"

Cargo.lock

@@ -14,6 +14,7 @@
 # zswap+swapfile  - Zswap + swap files (better performance, uses more disk)
 # zram+swapfile   - Zram + swap files (less disk usage)
 # zram            - Zram only (no disk swap)
+# manual          - Use explicit flags (zram_enabled, zswap_enabled, swapfc_enabled)
 # disabled        - Disable swap management (stops the service)
 ################################################################################
 
@@ -28,6 +29,7 @@ swap_mode=auto
 ################################################################################
 
 ## zswap_compressor=zstd           # Compression: lz4 (fastest), zstd (balanced), lzo
+## zswap_zpool=zsmalloc               # Memory allocator: zsmalloc (only option in modern kernels)
 ## zswap_max_pool_percent=50       # Max RAM % for compressed pool
 ## zswap_shrinker_enabled=1        # Proactively move cold pages to disk
 ## zswap_accept_threshold=85       # Resume accepting pages when pool drops to X%
@@ -40,7 +42,7 @@ swap_mode=auto
 ################################################################################
 
 ## zram_size=80%                   # Virtual size (e.g., 80%, 1G)
-## zram_alg=lz4                    # Compression: lz4 (fast), zstd (better ratio)
+## zram_alg=zstd                    # Compression: zstd (balanced), lz4 (fast)
 ## zram_mem_limit=70%              # Max physical RAM zram can use (OOM protection)
 ## zram_prio=32767                 # Priority (max = 32767)
 

Cargo.toml

@@ -49,7 +49,7 @@ and
 Percentage of ram that can be compressed.
 .I
 .IP zswap_zpool=
-Set wich compressed memory pool to use, if unsure use z3fold.
+Set wich compressed memory pool to use, if unsure use zsmalloc.
 .PP
 The following options are available in the "zram" section:
 .I

include/swap-default.conf

@@ -41,6 +41,9 @@ package() {
     # Install user config
     install -Dm644 include/swap-default.conf "${pkgdir}/etc/systemd/swap.conf"
 
+    # Install sysctl config (swappiness + page-cluster tuning)
+    install -Dm644 include/99-systemd-swap.conf "${pkgdir}/usr/lib/sysctl.d/99-systemd-swap.conf"
+    
     # Install man pages
     install -Dm644 man/swap.conf.5 "${pkgdir}/usr/share/man/man5/swap.conf.5"
     install -Dm644 man/systemd-swap.8 "${pkgdir}/usr/share/man/man8/systemd-swap.8"

man/swap.conf.5

@@ -236,7 +236,7 @@ echo ""
 
 print_info "Compressor: ${BOLD}LZ4${NC} (2-3x mais rápido)"
 print_info "Pool Zswap: ${BOLD}50%${NC} (~20GB swap em RAM)"
-print_info "Allocator: ${BOLD}z3fold${NC} (menos overhead)"
+print_info "Allocator: ${BOLD}zsmalloc${NC} (allocator padrão)"
 print_info "Chunk Size: ${BOLD}1GB${NC} (melhor para NVMe/SSD)"
 print_info "Anti-Thrashing: ${BOLD}5000ms${NC} (proteção forte)"
 print_info "Pré-alocação: ${BOLD}Habilitada${NC} (melhor performance)"